Watch PREY (1970) : Full Movie Online Free A young writer goes to therapy after the death of his father. Hoping to end his writers block, he receives a notebook from the therapist. During an intoxicated altercation he stalks a man like prey and ends up killing him. This sparks his inspiration to write again. He goes on a series of kills to finish his book while hiding his purpose from the therapist. During a session he forgets the notebook, forcing him to return for one final honest session.