3. Last House On The Left (1972) - Sadie
We all know what an utter immoral bastard Krug Stilo (David Hess) is, but what about his accomplices? There is Weasel - another immoral bastard, but more intriguingly we have Sadie a 'promiscuous psychopath and sadist'. In the film, she is every bit morally bankrupt as Krug and Weasel. She eggs on the sadistic torture of the two young girls Mari and Phyllis obviously getting a kick out of the proceedings - performing oral sex on a distraught Mari. When Phyllis runs away, Sadie is in hot pursuit and when she and Weasel capture Phyllis, Weasel stabs Phyllis several times in the gut. Not content with this hideous act, Sadie has to go one step further and she rummages around Phyllis' stomach, grabs her intestines and pulls them out with great relish. If that isn't classified as immoral behaviour, the universe is in deep trouble. Eventually Sadie gets her comeuppance at Mari's parents' house when Mari's mother cuts Sadie's throat and she falls into the pool. An ignominious end to a woman so evil and immoral she is frankly terrifying. The portrayal of female sociopaths has rarely exceeded Sadie in Last House on the Left in terms of how nasty a woman can be.