The Maitlands, Beetlejuice
At first they don’t even realize they’re dead, much less ghosts who’re supposed to be haunting their own house—something they prove to be terrible at, even with their own Handbook for the Recently Deceased and the gruff encouragement of their afterworld caseworker. Fear only enters the picture when they ill-advisedly involve the bio-exorcist Beetlejuice, and things get even worse when a bumbling human gets their mitts on the Handbook.