André Toulon is a puppet maker and the best of the kind. One day he happens upon an old Egyptian formula able to create life, so he decides to give life to his puppets. The Nazis seek to use this knowledge to their advantage and in desperation, Toulon commits suicide. Some years later four psychics get on the trail of a former colleague who suddenly commits suicide, and they decide to investigate the mansion he killed himself in. Along with his widow, they uncover the secrets of the Puppet Master.