Following the commercial success of Satan's Slave, Norman J Warren next turned to science fiction. Barry Stokes (The Corruption of Chris Miller) plays a carnivorous, shape-shifting alien on a fact-finding mission to Earth. He discovers the rural house of a lesbian couple – played by Sally Faulkner (Vampyres) and Glory Annen (Felicity) – and the three become embroiled in a claustrophobic psychological drama of sex and violence.2K restoration, supervised and approved by director Norman J WarrenOriginal mono audioAudio commentary with Warren and film historian Jonathan Rigby (2004)The BEHP Interview with Norman J Warren – Part One (2018, 60 mins): archival video recording, made as part of the British Entertainment History Project, featuring Warren in conversation with Martin SheffieldKeep on Running (2004, 28 mins): archival documentary on the making of Prey, featuring interviews with Warren, actor Sally Faulkner, producer Terry Marcel, and othersOn-set Footage (1977, 3 mins): rare behind