Natural Enemy (1996)

A businessman (Donald Sutherland) has a hotshot young new partner (William McNamara). What he doesn't realize is that his new partner is the son of his second wife, adopted into an abusive family at birth and now a raving psychopath out to murder his natural mother for whom he blames the miseries of his lifetime.

Director: Douglas Jackson

Cast: Donald Sutherland, William McNamara, Lesley Ann Warren, Joe Pantoliano, Tia Carrere, Christian Tessier, Lenore Zann, Rosemary Dunsmore