From the bestselling author of Sirens, Detective Aidan Waits is on the hunt to find the identity of The Smiling Man. A body has been found on the fourth floor of Manchester's vast and empty Palace Hotel. The man is dead. And he is smiling. The tags have been removed from his clothes. His teeth have been replaced. Even his fingertips are not his own. Only a patch sewn into his trousers offers any information about him. Detective Aidan Waits and his unwilling partner, DI Sutcliffe, must piece together the scant clues to identify the stranger. But as they do, Aidan realises that a ghost from his past haunts the investigation. He soon recognises that to discover who the smiling man really is, he must first confront the scattered debris of his own life.