Spider Baby

The credits dub this the maddest story ever told, a promise that's well on the way to being fulfilled in the opening scene alone, when Virginia (Jill Banner) traps and kills a hapless deliveryman in her makeshift web. She's one of three siblings who suffer from a unique genetic disorder that causes them to regress back to childhood, while retaining the physical strength and sexual maturity of adults. Lon Chaney Jr gave one of his most memorable late performances as Bruno, their guardian and protector, who has managed to cover up their crimes until two distant relatives lay claim to their house. When they insist on moving in, Bruno has to cross his fingers and hope that the children behave towards their new guests. (Arrow Films)