Men are turning up dead after receiving anonymous threats that include the date of their deaths. The latest person to receive one of these threats decides to call Santo the crime fighting wrestler for help. Santo must solve the mystery of the men's murders and confront a gang of Nazis operating in Mexico City.

A Nazi scientist using the lost city of Atlantis as his home base threatens to destroy civilization with a nuclear bomb. The Nazi scientist wants the third Reich to rule again and if his demands are not meet he will follow through on his threat of nuclear annihilation. With very little time to spare Santo is enlisted to find the nuclear bomb, disarm it and end the Nazi scientist’s diabolical plan

Bruno Halder a sinister scientist seeking revenge against his brother and niece is resurrected by Waldo his faithful sidekick. Besides his minions of zombies Halder enlists the help of Wolfman, Franquestain, a Vampire, a Mummy and a Cyclops. Once again the survival of mankind is put in the hands of Santo

A movie divided in two segments, the first "La puerta" (The Door) is about a high society gathering in which a door inside the mansion leads to a bizarre corridor where a naked and menacing human figure appears. The second "La mujer del carnicero" (The Butcher's Wife) is set during the Mexican revolution and is about horrifying hallucinations felt by a lieutenant after committing a murder.

Julien Saint Dominique, an agent of the French counter-espionage service in Berlin, investigates the kidnapping of a functionary taken by German communists into East Germany.