Hell Night (1981)

I watched this as part of my Linda Blair-a-thon. This is a classic scooby doo-esque horror movie. Four college students must spend a whole night in a haunted mansion as part of their initiation. Before being locked in for the night, they are told that the previous tenant killed his wife, three deformed children and hanged himself. Allegedly the mansion is still haunted by the fourth child. Throughout the night someone or someTHING keeps trying to scare, but is it really a prank? Who will survive Hell Night? MWAHAHAHHA!