John Agar is a scientist possessed by the titular creature, an evil alien criminal that sets its sights not just on world domination, but on vengeance against the authorities of its home planet, and power on a galactic scale, as well as on a little romance with the scientist’s fiancée. Fortunately, another brain shows up as well: Can it help the fiancée and her father foil the criminal? Agar’s evil face, especially when the brain is focusing its powers to destroy, is worth the price of admission.

  Mildly recommended. Otto judiciously thinks this movie is OK, but not great.

Movie 507 for 2021.