She's gorgeous, she's deadly, and she's literally too toxic to die — 50s sci-fi at its most unhinged.
Biochemists give fruit-fly serum to a dying woman, with side effects.
Costume
Kyra's wardrobe evolves from hospital gown to femme fatale realness.
Practical Effects
The chameleon-effect makeup is charmingly unconvincing.
Director
Kurt Neumann
Mari Blanchard
Kyra Zelas
Jack Kelly
Dr. Dan Scott
Albert Dekker
Dr. Richard Bach
John Archer
Barton Kendall
Fay Baker
Evelyn Kendall
Marie Blake
Hannah, the housekeeper
Paul Cavanagh
Sugar Daddy
George Baxter
Store Manager
William Haade
Detective (uncredited)
Franklyn Farnum
Party Guest (uncredited)
Bess Flowers
Trivia, insights & behind the scenes