Screamer (1974)

A young American girl on her way to visit friends in rural England is brutally attacked and raped. After spending the next few months in a mental institution trying to recover from her ordeal, she is released into the care of her friends. The police assure her that they have the man responsible in custody, and she begins to rest easy. That is until she sees her attacker wandering the streets of the town. After planning her revenge she follows the man and kills him. This, she thinks, is the end of her ordeal. That is until the man she thinks she has killed arrives at the house she is staying in.