In France, the former Countess Moncorn comes to the Haussemont Castle posing of the medium Claire Grandier for a séance with her telepathic friend and scientist Professor Gruber. They are welcomed by the Duke de Haussemont, who recognizes her. There is an interruption in the séance and the Duke invites Claire and Gruber to stay in his castle and offers his basement for the professor to proceed in his experiments. However Claire has an agenda, since she holds a grudge against the Haussemont family that she blames that was responsible for the suicide of her beloved husband Phillippe to acquire his properties. Claire uses the Book of Astarov associated to the ability and knowledge of Professor Gruber to reanimate a corpse controlled by Gruber seeking revenge against the responsible for the death of Phillippe. But her scheme gets out of control.