Relatives of a recently deceased man meet at his eerie castle for a reading of the will. They encounter a sinister piano player who turns out to be a toy maker, and his toys are imbued with murderous intentions.

From the hill of Tepeyac arise the most extraordinary miracles.

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?