Die Monster Die! is a 1965 horror film directed by Daniel Haller that stars the legendary actor Boris Karloff. Karloff plays Nahum Witley, a wheelchair bound English scientist who has discovered a strange meteorite that is emitting radiation rays. These rays have made the plants in his greenhouse grow to giant proportions. Then his wife falls victim to the mysterious powers of the meteorite. Meanwhile Witley's beautiful young daughter Susan (played by Suzan Farmer) is getting married to a young American named Stephen Reinhart (played by Nick Adams) and the two of them go to visit her father. Once at her father's estate Susan realizes her father has become evil from the meteorite's influence ad now it is up to her to stop him and protect Stephen. This film was loosely based off of the short story The Colour out of Space by the famous horror author H.P. Lovecraft.