When Winslow, a 12 year old girl who grew up in Cambridge, England, moves to an old apartment in America, she doesn't think she'll find anything exciting. But when she chooses to explore the old building, she lands upon a theater, and the spirit of a little boy trapped within. In order to set the boy free, she must solve his murder. But now she has to choose between freeing her new friends soul to never see him again, or keep him a secret from everyone else as long as she can.