Hitozuma tantei: Shirigaru sekkusu jikenbo 2009

Directed by Tetsuya Takehora

Kaoru, who has been cheating herself, storms out of the house in anger after her husband, Hiroki, investigates her infidelity. Unable to find a job, she goes to the detective agency that caused the problem and pressures the director, Nami, to hire her. Kaoru, a marriage detective, is born into the understaffed detective agency! With her natural flair and drive, she seduces the man she's investigating and forcefully gathers evidence of his infidelity, but...