A biker comes upon a girl with a flat tire and offers her a ride home. He winds up at a drug party with the girl's sister, then follows her to a turkey farm owned by her father, a mad scientist. The father turns the biker into a giant turkey monster who goes after drug dealers.
Blood Freak
A biker gets a job at a turkey farm and agrees to act as guinea pig for some chemicals that need tested, failing to anticipate the murderous side effects.