In the early 20th century, the Blackpool detective agency “Julius and Felton” opens, to which turn those whom the police can no longer help. There are two employees: Philip, a journalist who by chance is drawn into the investigation, and the mysterious Mr. Julius—an unsurpassed expert in the otherworldly realm, who brilliantly solves the most incredible crimes. The companions handle only unusual cases connected with the supernatural: vengeful ghosts, deadly curses, the risen dead, and mysterious murders. Time after time they solve puzzling mysteries and fight evil, saving lives—until one day a bloody crime from the past makes Felton wonder: what secrets does his partner keep? And can he be trusted?