Sister-In-Law, The (1974)

85 minutes in Color
Other Names: None

Director(s): Joseph Ruben
Writer(s): Joseph Ruben

Robert and Edward are brothers involved in a web of adultry and deceit. They share Edward's wife and his mistress and a mission to deliver a package of jewels across the Canadian border. But the jewels turn out to be drugs and the mission turns out to be deadly.