Luther the Geek (1990)

Luther the Geek (1990) tells the story of a modern-day geek who witnesses the real thing at a circus sideshow as a child. After watching the freak bite the head off a chicken, Luther gets knocked down and loses his teeth, which somehow turns him into an insane killer. Cut to present time, Luther is on parole, but he still has a pair of stainless steel choppers that he uses to bite the necks off of his victims. Stacy Haiduk is not about to become a finger-licking-good morsel for Luther. But it's understandable why he wants to cluck her, what with those large, juicy breasts. Stacy shares her ample white meat in a shower-and-sex scene with her boyfriend before Luther sinks his teeth into him. At least the guy had one last meal.