Dawson's Creek: The Scare

Dawson decides to frighten his friends with various schemes that culminate in a séance. However, he doesn't have to do much as they are all pretty spooked by reports of a serial killer on the loose. Everybody turns up at Dawson's house for the scary séance. But when the power goes out, the phone lines are cut and there are unexplainable noises. Is it Dawson or something much more sinister?