a young couple mandy pullman ( mitch martin ) and roy seeley ( matt birman ) be relax on a beach in the small town of galen . they decide to start play practical joke on each other . mandy hide in an old run down cabin and she be attack and rap by an unknown assailant . roy try to help her after hear her scream but be kill . dr. sam cordell ( john cassavetes ) and his daughter jenny ( erin flannery ) be both new to galen after the death of sam wife . sam be call into action by police chief hank walden ( john ireland ) when mandy and roy be find . he perform the autopsy on roy and treat mandy for her horrific injury . soon after a curator at the local museum name carolyn davis ( denise furgusson ) be also attack and rap . a local journalist name laura kincaid ( kerrie keane ) report the event and suggest to sam that a similar string of rape and murder occur in the town 30 year earlier . more rape and murder occur . meanwhile jenny boyfriend tim galen ( duncan macintosh ) have be have strange dream and nightmare and be convince that he have something to do with the horrific act . tim story and dig into the town past make sam become convinced of the existence of a creature know a an incubus a shape shift demonic entity that exist only to reproduce . direct by john hough this be one seriously dull horror film . the script by george franklin base on the novel by ray russell be slow to say the least . nothing interesting or excite happens and it finish with one of the most boring none event of a twist end i have ever see and frustratingly it just finish suddenly . a the story plod along at a snails pace there be a few rape and but none be show on screen . there be only one gore scene in the entire film too . the monster itself be only show at the very end and have all of three short scene . everything about this film production wise be very static and flat and the film have no energy or pace . the acting be dull and you do not feel or care for anyone . check out the scene in the autopsy room where you can clearly see the boom mike at the top of the screen on several occasion . the type of rubbish horror film make that you will forget within a day . a real waste of time and do not bother .