One day Stan sees a goose head in the garden and when he goes to tell his mother, notices a nearby mental hospital.
Mary delights in telling him that the hospital is home to sick, crazed individuals and that he would one day belong there as well.
Later that night the two fight again when Mary discovers that Stan has put the animal head in her box of Tampax.
Growing up, he lived near Broadmoor Hospital, causing him to fantasize about what would happen if a homicidal patient were to have escaped into the nearby forest.
In interviews with Film Threat and the BBC, Morgan noted that the sibling rivalry and animosity was based on his interactions with his sister and that he would occasionally imagine that the patient would rescue him from her.
[5] Due to the film's low budget, Morgan had a limited set of locations he could choose from and the house didn't turn out the way he wanted it to be.
Somehow he effortlessly assumes a child's unwavering gaze and phantasmagoric imagination, plunging the unwary viewer into a bloody Freudian vortex".