The Egyptologist James Barton arrives at Dartmoor Castle, whose owner, as it became known, has acquired a perfectly preserved mummy of an Egyptian priest. However, once in the castle, instead of the mummy, the scientist saw a strange picture: before his eyes, a staid English lord in a disheveled dress with crazy eyes whipped a half-decayed hand hanging on a chain over the fireplace. When he saw his guest, the Dartmoor lord laid aside the whip and, after cleaning himself up, told him a terrible story. Hoping to discover the secret of resurrection of the dead and eternal life, he could not pass by a unique opportunity. The ancient Egyptians found a way to keep bodies incorruptible, and he discovered an elixir that could raise the dead. Determined to put the remedy to the test, he poured his remedy into a mummy, and after an electric shock it came to life. But the ancient priest, possessing hypnotic power, immediately subdued the lord and his faithful servant John. And since the power of the living dead could only be supported by fresh human blood, soon there were ominous rumors about the disappearance of peasant girls in the area ...