In the smoke-wreathed gloom of a Parisian salon, Inspector Bencolin has summoned his allies to discuss a peculiar case. A would-be murderer, imprisoned for his attempt to kill his wife, has escaped and is known to have visited a plastic surgeon. His whereabouts remain a mystery, though with his former wife poised to marry another, Bencolin predicts his return. He sets off into the Parisian night to unravel the dumbfounding mystery and track down the sadistic killer. Originally published in 1930.