Sex-kitten Mary Harrison is being terrorized by a vicious gang of international jewel thieves. Fearing for her life, Mary phones her estranged twin sister, Julie, with cryptic warnings of danger. After dismissing her sister's tale as a paranoid fantasy, Julie is attacked by a knife-wielding maniac. The assault throws her into the arms of handsome attorney Steve Barton. Steve and his rogue detective pal, Tony, set out to untangle the dark web encircling the twins. Sexual sparks ignite a combustible love-triangle between Julie, Steve and Tony, as the double-crosses and dead bodies start to pile up.
Starring in dual roles as the endangered twins, cult icon and sex symbol Carol Baker catapulted to stardom playing the title character in Elia Kazan's 1956 shocker Baby Doll. Subsequent Baker roles included Something Wild (1961), How the West Was Won (1962), The Carpetbaggers (1964), Paranoia (1970), Andy Warhol's Bad (1977), Watcher In The Woods (1980), Star 80 (1983), Ironweed (1987) and The Game (1997). Also in the cast are Stephen Boyd and a full contingent of horror and Giallo favorites, Lucretia Love, Carla Mancini, George Hilton and Luciano Pigozzi.