Unwilling Lovers (also known as Mama's Boy and Young Lovers) is a 1977 pornographic horror film written and directed by Zebedy Colt and starring Terri Hall, John Bush, Holly Bush, C. J. Laing, Zebedy Colt, Rod Dumont, Jody Maxwell, and Annie Sprinkle.
Oblivious to the woman's death, Timmy engages in intercourse with her body, and leaves when he hears the girl's boyfriend approaching.
Timmy returns home, and when his mother notices that his pants are unfastened, she angrily lectures him on the evils of sex, and comforts and sedates him when he has an outburst.
Thinking that the wife is playing the same "game" as his previous female victim, Timmy sexually assaults her corpse, then eats a chocolate bar, unaware of exactly what he has done.
The media dub the killings "the Candy Bar Murders" because of the discarded sweets wrapper left at the current crime scene, and the earlier one.
Mrs. Benson and Jenny discuss the killings, and notice the knife Timmy has, and that he is eating the same brand of candy bars whose wrappers were left at the murder sites.