A young man visits his fiancé's estate to discover that her wheelchair-bound scientist father has discovered a meteorite that emits mutating radiation rays that have turned the plants in his greenhouse to giants. When his own wife falls victim to this mysterious power, the old man takes it upon himself to destroy the glowing object with disastrous results.
Boris Karloff
Nahum Witley
Nick Adams
Stephen Reinhart
Suzan Farmer
Susan Witley
Freda Jackson
Letitia Witley
Terence de Marney
Merwyn
Patrick Magee
Dr. Henderson
Sheila Raynor
Miss Bailey
Harold Goodwin
Taxi Driver
