Layton Mystery Detective Agency: Kat's Mystery‑Solving Files

Overview

The story is set in London and follows Katrielle as she solves mysteries with her talking dog Sherl.

Episodes

Katrielle and the Mysterious House

S01E01 Katrielle and the Mysterious House

April 8, 2018 24 min
Katrielle Layton, an intrepid investigator who heads up the three strong team at the Layton Detective Agency alongside her assistants Ernest and Sherl, takes on a case involving a mysterious house in which a new...
Katrielle and the Devil's Dress

S01E02 Katrielle and the Devil's Dress

April 15, 2018 24 min
Katrielle is approached by Pastel, a struggling musician, who claims that a strange dress he bought for his wife Olivia is causing her to become possessed.
Katrielle and the Resurrected Corpses

S01E03 Katrielle and the Resurrected Corpses

April 22, 2018 24 min
A young woman named Liv seeks Katrielle's help after she is visited by her late husband, Andy, apparently returned to life as a zombie.
Katrielle and the Phantom Thief of the Century

S01E04 Katrielle and the Phantom Thief of the Century

April 29, 2018 24 min
Inspector Hastings enlists the Agency's assistance in tracking down a serial jewel thief before the criminal can enact their most daring heist yet.
Katrielle and the Lucky Man

S01E05 Katrielle and the Lucky Man

May 6, 2018 24 min
The team becomes involved in a new case when a young man approaches the Agency in the hope of discovering a way to resume an implausible lucky streak.
The Bus that Leapt Through Time

S01E06 The Bus that Leapt Through Time

May 13, 2018 24 min
Katrielle stumbles upon a fresh mystery when a classmate of Ernest relates the story of a mysterious bus journey that seemingly transported them back to the time of their childhood.
Ratman Returns

S01E07 Ratman Returns

May 20, 2018 24 min
The Agency is visited by a young boy named Leo who fears that the mysterious hero of London's streets, Ratman, has been kidnapped.
The 100 Million Pounds that Left with the Wind

S01E08 The 100 Million Pounds that Left with the Wind

May 27, 2018 24 min
The team are summoned by Inspector Hastings to the site of a seemingly impossible burglary: one hundred million pounds have vanished from a high-tech bank vault.
Cat-Colored Skyscrapers

S01E09 Cat-Colored Skyscrapers

June 3, 2018 24 min
Katrielle is called to the estate of a millionaire gourmet with an unusual request: her pet has gone missing, and she wants it found before her dinner party commences.
Professor Layton and the Relics Treasure: Episode 1

S01E10 Professor Layton and the Relics Treasure: Episode 1

June 10, 2018 24 min
Rosa, an old acquaintance of Katrielle's father, visits the Agency with information relating to the Professor's disappearance eleven years ago.
Mystery at New Cinema Paradise

S01E11 Mystery at New Cinema Paradise

June 17, 2018 24 min
The Agency attend the premier of a much-anticipated film, only to discover mid-scene that the moment of the climactic kiss has disappeared from the reel.
Aspoirot and London's Holiday

S01E12 Aspoirot and London's Holiday

June 24, 2018 24 min
Relaxing on a public holiday, the Agency team become embroiled in a highly unusual case when a desperate Inspector Hastings pleads their aid in finding a last-minute gift for his wife's birthday.
Katrielle and the Doppelgänger

S01E13 Katrielle and the Doppelgänger

July 1, 2018 24 min
Katrielle takes on a new case involving a young pianist who is being plagued by appearances of a doppelgänger.
Genius Analyst Officer Geraldine Royer

S01E14 Genius Analyst Officer Geraldine Royer

July 8, 2018 24 min
Katrielle and the team are left puzzled when Hastings requests their help on a case where the culprit has already been uncovered.
Katrielle and the Mystery Circles

S01E15 Katrielle and the Mystery Circles

July 15, 2018 24 min
The Agency receives a new mystery to solve when a young farmer details the unexplained appearance of strange patterns in their wheat fields.
Katrielle and the Pandas' March

S01E16 Katrielle and the Pandas' March

July 22, 2018 24 min
Katrielle investigates a young girl on behalf of her concerned mother, who believes her daughter is able to predict the future.
Katrielle and the Monster of London

S01E17 Katrielle and the Monster of London

July 29, 2018 24 min
Hastings turns to the Agency trio when London is menaced by a mysterious growling giant lurking in the fog.
Molentary Express and Three Incidents

S01E18 Molentary Express and Three Incidents

August 5, 2018 24 min
Travelling on board the Molentary Express for a special solar eclipse tour, the team find their attention divided when clients old and new describe a sequence of strange events.
The Lonely Ghost

S01E19 The Lonely Ghost

August 12, 2018 24 min
The team are summoned by a young heiress whose estate is seemingly being haunted by a host of ethereal apparitions.
Professor Layton and the Relics Treasure: Episode 2

S01E20 Professor Layton and the Relics Treasure: Episode 2

August 19, 2018 24 min
Rosa returns to continue her story, and reveals the link between Katrielle's origins and the Professor's disappearance.
Katrielle and the Sweet-Scented Street Labyrinth

S01E21 Katrielle and the Sweet-Scented Street Labyrinth

August 26, 2018 24 min
In search of sweets of legendary reputation, Katrielle is hooked when she is told that she will have to prove her connoisseur qualifications by locating the nearby store herself.
Ultra-High Performance Robot Socketman

S01E22 Ultra-High Performance Robot Socketman

September 2, 2018 24 min
Katrielle is invited to the unveiling of Agency acquaintance and child genius Bengary's latest invention: Sketman John, a robotic renaissance-manservant.
Katrielle and the Great Office Infiltration Strategy

S01E23 Katrielle and the Great Office Infiltration Strategy

September 16, 2018 24 min
One of London's famous "seven millionaires" requests the team's investigative attentions after discovering a love letter written by his much-adored daughter, Allie.
The Clockwork Sweets

S01E24 The Clockwork Sweets

September 23, 2018 24 min
Hastings employs the Agency's efforts in the search for a hand belonging to Big Ben, in the hope of recovering it before the arrival of a foreign ambassador.
A Riverside Festival Love Story

S01E25 A Riverside Festival Love Story

September 30, 2018 24 min
Katrielle joins an investigation at London's Riverside Festival into a tragic incident that took place on the banks of the River Thames, mirroring a local legend.
The Diary of Noah

S01E26 The Diary of Noah

October 7, 2018 24 min
Ernest recounts the time he was accused of stealing valuable research papers on his first day at Gressenheller University, and his resultant first encounter with Katrielle.
Fugitive Katri

S01E27 Fugitive Katri

October 14, 2018 24 min
The Agency team are forced to go on the run from the law after Katrielle finds herself the prime suspect in a murder investigation.
The Goddess of the Thames Smiles a Second Time

S01E28 The Goddess of the Thames Smiles a Second Time

October 21, 2018 24 min
Katrielle finds yet another mystery on her hands when a celebratory treasure hunt held on a luxury cruise ship's inaugural voyage goes awry.
Katrielle and the Nessie of Loch Nem

S01E29 Katrielle and the Nessie of Loch Nem

October 28, 2018 24 min
The Agency trio travel to the Scottish Highlands after receiving a request to investigate recent sightings of the famous "Nessie" creature on the waters of Loch Nem.
Katrielle and the Immortal Vampire

S01E30 Katrielle and the Immortal Vampire

November 4, 2018 24 min
Strange goings-on in a suburban domicile lead the Agency's latest client to seek their advice as to whether or not his wife has become a witch.
Katrielle and the Witch Wife

S01E31 Katrielle and the Witch Wife

November 11, 2018 24 min
Strange goings-on in a suburban domicile lead the Agency's latest client to seek their advice as to whether or not his wife has become a witch.
Katrielle and the Prince of the Stars

S01E32 Katrielle and the Prince of the Stars

November 18, 2018 24 min
Katrielle takes on the task of reuniting a young woman with the object of her affections, a man who claimed to hail from another planet.
Katrielle and the Murder on the Spaceship Bengarian

S01E33 Katrielle and the Murder on the Spaceship Bengarian

November 25, 2018 24 min
Bengary challenges the Agency team to solving their most ambitious case yet: a murder mystery from the realm of his own imagination.
Professor Layton and the Relics Treasure: Episode 3

S01E34 Professor Layton and the Relics Treasure: Episode 3

December 2, 2018 24 min
On the tail of the fabled Relics, the Professor and Luke of eleven years prior close in on a shadowy figure, while Katrielle and co. trace their whereabouts in the present.
Professor Layton and the Relics Treasure: Episode 4

S01E35 Professor Layton and the Relics Treasure: Episode 4

December 9, 2018 24 min
The paths of the parties past and present converge in Southampton, as the final hours before the duo's disappearance count down.
The Cursed London Collection

S01E36 The Cursed London Collection

December 16, 2018 24 min
Angel Arrow CEO Bergman calls on the Agency after the label's four showcase dresses vanish two nights before the world's biggest fashion show.
Mintan's New Ambition

S01E37 Mintan's New Ambition

December 23, 2018 24 min
The Agency is visited by Mintan's fellow farmworkers, seeking the team's help after a sudden personality change in their old friend transformed him from hard-working agronomist to obnoxious gambler sporting an improbable winning streak.
Dancing Scotland Yard Great Investigation Line

S01E38 Dancing Scotland Yard Great Investigation Line

January 6, 2019 24 min
Katrielle joins a Scotland Yard blockade erected around a bridge due for demolition after Bengary's latest Sketman, Punch, takes up residence. With the giant robot incapable of vocal communication, Katrielle must figure out the reason...
Katrielle and the Invisible Baby

S01E39 Katrielle and the Invisible Baby

January 13, 2019 24 min
An Agencybound Katrielle receives a call from babysitter Kelly, whose concerns are centered around her latest assignation appearing to include an invisible infant.
Geraldine Royer and the Final Customer

S01E40 Geraldine Royer and the Final Customer

January 20, 2019 24 min
Spurred by a horoscope warning that the only recourse to having "the worst day of the decade" might be to spend it with a friend, Katrielle decides to spend the day with Emiliana at a...
Katrielle and the Strange Spirit Photo

S01E41 Katrielle and the Strange Spirit Photo

January 27, 2019 24 min
In the wake of discovering a recurring phantom figure appearing in his images, London Times photographer Pete contacts the Agency, fearing that he has fallen victim to a curse.
Great Detective Sherl O.C. Kholmes

S01E42 Great Detective Sherl O.C. Kholmes

February 3, 2019 24 min
Tired of being treated like the Agency dogsbody, Sherl jumps at the chance to conduct his own investigation into the reported death of a beloved member of the neighborhood pack.
Katrielle and Horror Castle VR

S01E43 Katrielle and Horror Castle VR

February 10, 2019 24 min
The Agency trio are recruited by an old client with the goal of completing a challenging "virtual reality game".
Katrielle and the Superman Chef

S01E44 Katrielle and the Superman Chef

February 17, 2019 24 min
After an incident involving a misunderstood "all-you-can-eat" restaurant opening and Katrielle's insatiable appetite, the eager investigator accepts the offer of a cook-off challenge to settle her debt.
Katrielle and the Ghost Club

S01E45 Katrielle and the Ghost Club

February 24, 2019 24 min
Supernatural superfan Andrea, youngest of the seven millionaires, invites Katrielle and a selection of her acquaintances to compete in a game of "Ghost Escape".
Katrielle and the Hundred Faces of Mona Lisa

S01E46 Katrielle and the Hundred Faces of Mona Lisa

March 3, 2019 24 min
The Agency trio's trip to the Marylebone Museum of Art to see the famous Mona Lisa takes a strange turn when Katrielle is informed that the museum's entire collection has been surreptitiously replaced with an...
The Millionaire Ariadne's Conspiracy (1)

S01E47 The Millionaire Ariadne's Conspiracy (1)

March 10, 2019 24 min
Receiving an invitation addressed to her father requesting attendance of a puzzle-solving event hosted by the mysterious Ariadne, Katrielle and company find themselves reunited with all seven of the renowned London millionaires at the deserted...
The Millionaire Ariadne's Conspiracy (2)

S01E48 The Millionaire Ariadne's Conspiracy (2)

March 17, 2019 24 min
With the realisation that the Seven are hiding a secret, Katrielle's investigation takes an unexpected turn, and as she pieces together the mystery, the true identity of their host is revealed.
Professor Layton and the Relics Treasure: Episode 5

S01E49 Professor Layton and the Relics Treasure: Episode 5

March 24, 2019 24 min
In the wake of having located Luke and the Professor, Katrielle's investigatory instincts refuse to let her rest, compelling the team to follow the trail of the mysterious "Aldebaran" to his palatial home in search...
Professor Layton and the Relics Treasure: Final Episode

S01E50 Professor Layton and the Relics Treasure: Final Episode

March 31, 2019 24 min
The two parties united at last, their long journey comes to a climactic conclusion in a fateful showdown at the Greenwich Observatory with the man behind the entire conspiracy.

Cast

Kana Hanazawa
Kana Hanazawa
Katrielle "Kat" Layton (voice)
Kyousuke Ikeda
Kyousuke Ikeda
Noah Montoir (voice)
Hibiku Yamamura
Hibiku Yamamura
Geraldine Royer (voice)
Jurota Kosugi
Jurota Kosugi
Sheri (voice)
Soma Saito
Soma Saito
Luke Triton (voice)
Yohei Tadano
Yohei Tadano
Darjeeling Aspoirot (voice)
Koichi Yamadera
Koichi Yamadera
Professor Hershel Layton (voice)

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