Tainted Blood (5.2)

Movie · 1993 · 1 h 40 min · Mystery, Thriller, TV Movie

After a 17-year-old shoots his parents dead and then turns the gun on himself, an investigative reporter makes a disturbing discovery. The adopted boy was born to a mother who, as a teen, inexplicably murdered her parents as well. Even more alarming is the discovery that the dead boy has a twin, who may also be genetically predisposed to kill.

Directed by: Matthew Patrick

Starring Raquel Welch, Kerri Green, Alley Mills, Joan Van Ark, Natasha Gregson Wagner, Lewis Arquette, Thomas W. Ashworth, Richard Gross, Molly McClure, Rochelle Swanson

We don't know where to watch it in the US.