Eleventh-grader Mia Petrelli's worst problem is her forthcoming oral report on Hamlet, until a ghost wearing a bloodstained skirt confronts her. The phantom begs for help to find her lost baby. Mia has seen spirits before, but none so alarming as this one. Persistently haunted by the dead girl, she has little choice but to investigate the ghost's past. With the support of her long-time friend Ethan Abbott, Mia strives to uncover the truth so the ghost can rest. Just as Mia's friendship with Ethan begins to grow deeper, she discovers a buried secret in his family that threatens their budding romance. To work through the snags in their own relationship, together they must help two troubled spirits achieve peace.