When Uncle Gary mysteriously disappears, all he leaves behind is a mountain of sawdust and a nighstand that his eleven-year-old nephew, Billy, inherits. When Billy is awakened at night by noises from inside the nightstand, he takes a closer look and discovers a hidden panel that opens to an antique maze of wooden corridors. He and his sister Sophie believe that Uncle Gary is hiding somewhere in the nightstand. As Billy, Sophie, and their two friends, Chris and Maggie, begin to explore the ancient hallways they discover far more than they expect. Billy must make a terrifying choice: let the police handle things the conventional way, or escape to the nightstand and try one last time to find Uncle Gary before it's too late.