Revenge of the Teenage Werewolf (1960)

Tony Rivers (played by Don Glut) has a secret, he is the Teenage Werewolf. In his werewolf form, he becomes an uncontrollable killer. In his human form, he witnesses a rumble between two warring teenage gangs. When the fight is over, he transforms into the werewolf and kills a few gang members. Returning to human form, Rivers tries to remain calm, not wanting to draw attention to what has just happened. Unfortunately, a gang members sounds a car horn, which causes Rivers to transform into the werewolf. Rivers recommences killing teenagers. One survivor escapes and is joined by the car sounding youth. Together they use wooden stakes, bricks and bullets, forcing Rivers into an alley way, where they think they have killed the Teenage Werewolf.