After a young man is killed in an unexplored subterranean cavern and his girlfriend driven mad by something she saw there, a track found at the scene cannot be identified with any known animal and thus a scientific expedition is launched to find out just what it is that is living there.

Dr. Satan, a mad scientist and sorceror, plans to take over the world. In order to do so, he wakes up three zombie slaves from the dead and attempts to make a deal with the devil. He sends his zombie servants to do harm to anyone who stands in his way. Will anyone be able to stop him?

A woman betrayed by a man falls into despair and kills him. What fate will the jury decide for her?