The Man Who Was Not

The story unfolds with the suspicious death of Gerald Dawson in a supposed road accident, leading to a chilling series of mysterious phone calls to his family predicting their deaths. As the predictions come true, Scotland Yard enlists Dr. Sawley Garson, an expert in solving intricate puzzles, to track down a seemingly invisible serial killer. This gripping narrative combines elements of mystery and suspense, challenging both the characters and readers to unravel the enigma of an "impossible crime."