When Jenny Thorton and her friends open the mysterious white box given to her by Julian, they discover a mysterious game and enter a house of horrors full of their worst nightmares.
Jenny's friends are lost one by one to a ghostly wolf and a phantom snake, instruments of the sinister but attractive Shadow Man, who has returned from the Shadow World with a deadly game called ""Lambs and Monsters.""
To rescue her boyfriend Tom and her cousin Zach from the evil Julian, Jenny Thornton and her friends--Audrey, Michael, and Dee--venture into the Shadow World, armed only with a set of runes that hold the key to the doors of hell.
