Julia Lofting (Mia Farrow), her husband Magnus (Keir Dullea), and daughter Kate (Sophie Ward) eat breakfast and Kate starts to choke on an apple. When the apple refuses to dislodge, Julia reaches for a knife and tries to perform a tracheotomy on Kate as she bleeds to death.
Julia leaves her husband and moves to a new house. An upstairs room contains a child’s possessions. Julia finds a mechanical clown toy with sharp, clanking cymbals and accidentally cuts her finger on them. In the park, Julia thinks she sees Kate, but she disappears. Julia hears strange noises and thinks its her ex husband. Odd events in the house such as noises and appliances that turn on by themselves.Later, Julia sees the girl in the park, and finds a mutilated turtle and knife where she stood.