When a new neighbor moves into the house next door, Poppy the puptective couldn't be more uninterested. She's too busy solving the mystery of the unseen culprit chewing up all the furniture in her house. But when Poppy catches a possible ghost playing with Truffles's toys in the middle of the night, whatever's going on next door becomes urgent! Good thing Poppy and Truffles the cat are on the case!