They were joined at birth by the devil and the evil never left them!
Inquisitive journalist Grace Collier is horrified when she witnesses her neighbor, fashion model Danielle Breton, violently murder a man. Panicking, she calls the police. But when the detective arrives at the scene and finds nothing amiss, Grace is forced to take matters into her own hands. Her first move is to recruit private investigator Joseph Larch, who helps her to uncover a secret about Danielle's past that has them both seeing double.
Director: Brian De Palma
Screenplay: Brian De Palma, Louisa Rose
Producer: Edward R. Pressman
Director of Photography: Gregory Sandor
Danielle Breton / Dominique Blanchion
Grace Collier
Joseph Larch
Emil Breton
Phillip Woode
Arthur McLennen
Mrs. Collier
Detective Kelly
Sisters - The Arrow Video Story
Sisters (1973) - Trailer