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 its climax. Extrashd restorationoriginal mono audioalternative 5.1 surround sound trackalternative score experience the film with the controversial re scored electronic music soundtrack, as used on the 2004 home video re releaseaudio commentary by the hysteria continues team justin kerswell author of teenage wasteland the slasher movie uncut joseph henson, erik threlfall and nathan johnsonimage gallery on set and promotional materialoriginal trailer and tv spotsnew and improved english subtitles for the deaf and hard of hearin