Robert and Edward are brothers involved in a web of adultery 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 Cast of The Sister in Law
Anne Saxon
as Joanna Strong
Jonathan Oppenheim
as Fat Man
Tom Mahoney
as Thin Man
Jan DeCarlo
as Mrs. Strong
Jack Cooper
as Mr. Strong
Larry Sontag
as Hood
Gillian Gordon
as Lena
Michael Ruben
as John Strong
Ray Valente
as Messenger
Robert Baines
as Literary Agent
Bruce G. Sparks
as Producer #1
Noel Casabona
as Hood
Lucien Bohbot
as Girl in Cafe
Crew of The Sister in Law
Discover the backstage crew of The Sister in Law →- Released on July 04, 1974