In an old-fashioned "trapped-in-a-haunted-house" story, twins Riley and Scarlett receive an interesting assignment from their teacher, Mrs. Stermon. Everyone in class needs to do a documentary video about an adventure, something exciting that they experienced. Mrs. Stermon gives them a suggestion, along with their friends Carter, Lee, Danitia, and Mia. She shows them a brochure about a scary old house on the edge of town, called Shudder Mansion. "If you six kids and your parents can stay there overnight, you´ll all get A´s," says the teacher. "I´ll even give you extra credit." Just how scary is Shudder Mansion? It´s terrifying.