In 1981 John Holmes, a drug addicted porn star, was at the lowest point of his 'career'. On July 1, 1981 four people were left dead in a grisly murder, apparently in retribution for the robbery of a notorious nightclub magnate.. The film looks at the events leading to the murders. The police investigation relies on the testimony of two men: Holmes and a biker who took part in the robbery, whose girlfriend was one of the murder victims. The biker says Holmes had to have had a direct part in the murders (Holmes' palm print was found at the crime scene). Holmes, however, claims he only set up the hit and that he was not at the apartment at the time of the murders. Now the police are caught in a dilemma. But whom are they supposed to believe: a biker with a heroin habit who has a personal ax to grind against Holmes, or a porn star with a notorious cocaine habit who is also known in many circles as a pathological liar?