Tainted on AllMovie

In a storyline as thin as the underwear worn by Cathy (Shari Shattuck) in the opening scenes, this housewife is having sex all by herself when a rapist armed with a knife bursts into the house. Her husband unexpectedly arrives on the scene, discovers the rapist, stabs him with his own knife, and then has a heart attack. Not exactly knowing what to do with two corpses, Cathy buries the rapist in the garden and stages a fake auto accident to explain her husband's untimely death. The problem is, his evil sister and her lover cannot be trusted -- but by now some viewers may not trust the plot either.