A mentally ill woman named Anne lives alone in her apartment. One night, she hears a scream from outside of her apartment, to discover a dead body laying by a garbage bin, and standing over the body is her doppelganger. She phones the police, but hangs up after they ask her for a description of the attacker. She phones her mother, hysterical. She hears the door unlock, and finds her doppelganger standing in her kitchen, and must face herself.