The Astounding She-Monster (1957)

Crooks take over the country house of a geologist after they have kidnapped an heiress where they plan to hold her until the ransom is collected. Soon, they hear an explosion in the woods nearby that turns out to be a spaceship containing a glowing blonde alien with a skintight metallic suit, high heels, lipstick, and incredible eyebrows. She kills with her touch, which contains radium poisoning.