The movie is a "rip-off" or parody of several famous horror and pop culture films:
: Once inside, the group realizes the house is legitimately haunted by the ghost of its former owner, Hugh Kane. They face various absurd and grotesque supernatural occurrences, including a foul-mouthed skeleton, a possessed cat, and a "strong hand" caretaker named Hanson. Scary Movie 2HD
: Professor Oldman and his assistant Dwight invite the group to Hell House, promising they are participating in a study to help with insomnia. The movie is a "rip-off" or parody of
: Specifically the scene involving a clown doll under the bed. : Specifically the scene involving a clown doll
: The film also parodies The Amityville Horror , Hollow Man , Stigmata , and even The Rocky Horror Picture Show .
: The opening scene famously spoofs the possession of Regan MacNeil.
: Serves as the primary framework for the haunted house setting and sleep study plot.