The Sister in Law (1974)

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 mission turns out to be deadly. {full_page}

John Savage , Will MacMillan , Anne Saxon , Meridith Baer , Frank Adonis , Jon Oppenheim , Tom Mahoney , Jan DeCarlo , Jack Cooper , Larry Sontag , Gillian Gordon , Michael Ruben , Ray Valente , Robert Baines , Bruce G. Sparks