S01E01 Episode 1
After receiving a call from Hong Hee-joo's kidnapper, Paik Sa-eon attempts to learn more about him — only to find it's hard to escape his surveillance.
When the Phone Rings
Their love hangs by a thread... until a stranger picks up the phone.
Overview
A rising politician and his mute wife's tense marriage begins to unravel after a call from a kidnapper turns their lives upside down.
Episodes
S01E02 Episode 2
Sa-eon works quickly to track down the caller, forcing Hee-joo to stay hypervigilant. Despite her fears, she continues to play along with the ruse.
S01E03 Episode 3
After Sa-eon experiences an attack, he grows wary of Hee-joo's relationship with her friend. Meanwhile, an ominous figure makes his presence known.
S01E04 Episode 4
After receiving the ominous call, Hee-joo abandons her clandestine plan. She then undergoes a tough interview with Sa-eon — sharing an intimate moment.
S01E05 Episode 5
Sa-eon grapples with feelings of betrayal after learning the truth about Hee-joo. However, when she receives good news, they begin to grow fonder.
S01E06 Episode 6
Hee-joo confronts a figure from her past who wishes to reveal what she knows. She then embarks on a retreat with Sa-eon — who becomes possessive of her.
S01E07 Episode 7
Sa-eon and Hee-joo's relationship shifts after her harrowing rescue. Determined to catch the kidnapper, Sa-eon goes full force — with the help of 406.
S01E08 Episode 8
As Hee-joo and Sa-eon grow closer, the threat from the kidnapper intensifies. Sa-eon discovers an ominous and shocking clue from a past figure.
S01E09 Episode 9
Hee-joo worries about Sa-eon after learning the truth about him. She later appears on the stage of her dreams, side by side with her love.
S01E10 Episode 10
While attempting to rescue Hee-joo, Sa-eon discovers another surprising conspirator — whom he later tries to persuade to help locate the kidnapper.
S01E11 Episode 11
After Hee-joo's bold move, her fate and that of her kidnapper remain uncertain. But Sa-eon refuses to give up — leaving no stone unturned to find her.
S01E12 Episode 12
Sa-eon abandons everything he's worked for, leaving Hee-joo completely alone. But after a clue arrives, she embarks on a journey to reunite with him.
Cast
Yoo Yeon-seok
Baek Sa-eon
Chae Soo-bin
Hong Hee-ju
Heo Nam-jun
Ji Sang-woo
Jang Gyu-ri
Na Yu-ri
