The Aztec Mummy - 1957 - 6/10
AKA - La Momia Azteca

Professor Almada explains to reporters, and the world (and underworld boss, The Bat).
About hypnotic regression, pushing subjects back to a previous life. Reincarnation.
Scoffers pounce. For proof, Almada regresses his fiancé Flor.
Turns out, she was an Aztec priestess, with knowledge of hidden treasure!
“Treasure? Did someone say treasure?” and master criminal Bat swings into action.
Routine adventure saga perks up considerably with all the Aztec story.
Costumes, drums, pyramids, doomed lovers.
Sequel follows.