As a young boy, 8-year-old Finn is apprehensive about moving from sunny California to Maine in the most terrifying house he has ever seen! Finn, convinced that his new house is haunted, sets up a series of sophisticated traps to catch the "ghost." With his parents trapped across town, Finn's traps snag a new target: a group of robbers who have decided to break into Finn's house when he is home alone with his sister.