Samantha, a psychologist, works on the radio, answers questions live. A woman who called her one day introduced herself as Annie, a patient of Samantha who committed suicide several years ago. From that moment on, an atmosphere of fear begins to build up around her: a murderous maniac constantly calls her, urging her to repent of her sins, someone is watching her. And then a certain writer Ty Wheeler begins to court her - with the secret intention of using her for his own purposes: he is a former police officer and is investigating Annie’s death. Samantha no longer knows who to trust, from which side the danger lurks for her...