It's Halloween and a letter addressed to Apartment 13B has been accidentally delivered to Carly and Spencer, so Carly heads downstairs to give the letter to Lewbert. On her way down there, she finds Freddie dressed in the Halloween costume that his mom made—a witch's cloak, broom, and a wart. Carly, Sam and Freddie take refuge in a closet, but are terrified by a disembodied clown's head they find. They head to the kitchen and Sam finds her hands covered in what appears to be blood.