Aside from Marc Lawrence's original cut of the film, which was titled "The 13th Pig", two other versions of it exist. The first one featured a three-minute introduction depicting Toni Lawrence's character Lynn Hart (here portrayed by a different but similar-looking actress) being possessed by a demon and the subject of an exorcism, ending with her running from the room. This version was exhibited under various titles, including "Love Exorcist" and "Blood Pen". The second one featured an all-new introduction that shows Lynn's childhood experiences with her incestuous father, ending with her stabbing him to death with a knife after he had raped her and then being committed to an asylum because she believes that her father is still alive. She escapes when a nurse undresses to have sex with a doctor, leaving behind her uniform and her car keys. There is also a new ending in this version, which shows Lynn faking her own death and later being picked up on the side of the road by an elderly man in his car who, as she tells him, reminds her of her "Daddy". Lynn is portrayed in these additional scenes by various actresses wearing wigs and photographed from obscure angles. This version was originally titled "Daddy's Girl". This is also the version that was released to home video by various companies and again under various titles, including "Daddy's Deadly Darling", "Pigs", "The Killers" and "Horror Farm".