Clasificación IMDb: 3,2/10 (1175 votos)
Director/es: Sam Newfield
Reparto Johnny Downs (Como Tom Gregory), George Zucco (Como Dr. Cameron), Anne Nagel (Como Lenora), Glenn Strange (Como Petro), Sarah Padden (Como Grandmother)
País: USA Estudio: PRC
Duración: 77 minutos.
Género Drama, Terror, Romántica, Ciencia Ficción
Argumento: Dr. Cameron has succeeded in his experiments with a serum which will turn a man into a wolf-like monster, and is ready to avenge himself on the men who caused his professional failure. He uses it on his gardener Petro and one after the other is killed by his creation. His daughter, Lenora, grows suspicious and confides with newspaper reporter Tom Gregory.