The Diabolical Dr. Z

The Diabolical Dr. Z is a 1966 horror film directed by Jesús Franco. The film stars Mabel Karr as Irma Zimmer, a surgeon who creates a machine that turns people into zombified slaves. Ms. Zimmer is the daughter of a Professor Zimmer, who was hounded to his death several years earlier by four of his scientific associates. Zimmer uses the machine to control an erotic dancer named Miss Muerte who uses her long poison-tipped fingernails to murder the people Ms. Zimmer holds responsible for her father's death.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.