Fright (1971)
Young babysitter Amanda arrives at the Lloyd residence to spend the evening looking after their young son. Soon after the Lloyds leave, a series of frightening occurrences in the gloomy old house have Amanda's nerves on edge. The real terror begins, however, when the child's biological father appears after recently escaping from a nearby mental institution. rape, psychopath, paranoia, babysitter, child in peril, murder, revenge killing, old mansion, english police