After being involved in an accident resulting in complete memory loss, Jack Winger is admitted to a convalescent clinic. There he learns that he was a crime reporter, that no one has visited him in hospital, and that all the interns suffer from amnesia. What nobody tells him is that all the patients suffer from recurring nightmares: terrible dreams that are repeated every night. Nor that sometimes the chief nurse takes a patient to the forest but returns alone, nor that there is a tower with a hidden door through which it is forbidden to enter…
With the help of Julia, a young patient whose nightmare, if it were possible, is much worse than his own, Jack discovers that there are places it is better not to enter, and that some secrets should remain hidden forever.