Ghoulies

Malcolm is about to sacrifice his child named Jonathan Graves when his mother, Anastasia, places a talisman around his neck that shocks Malcolm. He orders a participant named Wolfgang to take the child away, and sacrifices her instead. Twenty-one years later, an adult Jonathan and his girlfriend Rebecca inherit his late father's estate, where they find several books on magic and a basement full of occult paraphernalia. When they later throw a party and invite their friends, Jonathan recruits them to perform a ritual in the basement for fun. Everyone leaves when nothing happens, but a small creature begins to materialize in the basement.