A hilariously campy Japanese science-fiction film about an alien... evil brain from outer space. It combines footage from three different Japanese films made in 1958 and 1959. Excellent imdb.com review:
The meandering plot is juvenile; and the opening scene features an interplanetary council of some of the most hilariously unlikely aliens you'll ever see (...) What distinguishes "Evil Brain", though, is its monsters, which are genuinely disturbing: one is a swift, chattering beast, with glaring eyes (one of which is on its stomach), huge fangs and long "cobalt nails". It also has two filigreed crests on its head (like bizarre Mickey Mouse ears), breathes smoky radioactive fumes, and has the ability to turn invisible... The other mutant is a silent woman whose face resembles a beaked bird of prey. She also has special skills: she can turn invisible, and she kills with one touch from her fingertips. In fact, she kills a young mother while her two small daughters are playing (a scene which probably explains why this movie doesn't turn up on TV any more!).