Popular high school senior Virginia Wainwright (Melissa Sue Anderson) survives a freak accident, but suffers from memory loss and traumatic blackouts. As she attempts to resume a normal life, something terrible is happening - her friends are being ruthlessly murdered one by one. But will she be the next victim or is she the killer? Director J Lee Thompson's classic shocker was made during the period before the horror genre drenched itself in irony and self-reflexivity, and instead revels in the effective staging of the terrifying set-pieces which drive it towards it's climax. "