Poppy is a young dog with the most fantastic family she could ask for. One day, her owners pack their bags and leave for a week, leaving her behind for her Auntie Lucy to look after. But what is Poppy meant to do when Auntie Lucy stops showing up? What about when the walls begin to shift and rot? And what is she supposed to do when she realizes that the family that comes home, isn't hers, but a twisted version of them?