One day Muraki receives a request from the Director. About a week ago the Director was walking along the Sumida River after a night a drinks. Out of nowhere someone pushes him backwards, injures his forehead, and causes him to fall down some stairs. He wants Muraki to do background checks. Even after having constant surveillance on the Director day and night the mysterious figure can't be found. Then done evening the Director get a call from an unidentified man say he has kidnapped Megumi.
Muraki works for a small detective office situated in downtown Tokyo. He takes frequent naps in between cases, during which he often have dreams with premonitions of his next client's case. Their clients come up with strange requests that sometimes seem impossible to solve.
