A newlywed fears she's going mad when strange things start happening at the family mansion.

A ship's officer is sentenced to Devil's Island for murder after a fatal brawl.

Two years into a marriage with the heir of a wealthy family, Ayumi is already feeling distant from her husband. The reason is her coercion into nightly perverted activities by the sadistic inclinations of her sadistic husband. In addition, the same man on her commute to finishing school frequently molests her. The man ultimately shows up at Ayumi’s house and rapes her. She realizes it has all been captured on camera and the man that raped her was hired to do so by her husband.

The wife and mistress of a cruel school master collaborate in a carefully planned and executed scheme to murder him. The plan goes well until the body, which has been strategically dumped, disappears. The psychological strain starts to weigh on the two women when a retired police investigator begins looking into the man's disappearance on a whim.