Movies and TvShows featuring "sister-adopted-brother-sex" theme.

In 'Playback,' a police officer investigates a series of murders in a small town. As he delves deeper, he discovers a demonic possession and a dark secret that the town has been hiding. With supernatural powers at play, he must uncover the truth before it's too late.

Robert and his wife have a daughter and an adopted son, Matthew, whose biological father is Robert's deceased best friend and former lover, Domeng. Conflict ensues as Robert becomes sexually attracted to a teenage Matthew while Matthew impregnates his stepsister much to the shame of the family matriarch.

Set on a lush Greek island, the story concerns a sister and brother, who return home after years abroad. Falling under the island's erotic spell, the girl and boy discover that their love goes beyond filial...