The first victim lived just long enough to describe his attack. First came a deep growling... then a sudden thrust for his throat. He died... convinced he'd been attacked by a werewolf. The grisly murders of Rochester's huge film manufacturing complex puzzled Chief of Detectives Tom McCabe. A werewolf prowling the corridors of the huge facility... attacking middle-management level employees? Preposterous. But just to be on the safe side, he'd call in Ryerson H. Biergarten, the well-known parapsychologist. If Rye could deal with ghosts, he could catch a werewolf!