Die, Monster, Die!
Helga forces Witley (Boris Karloff) to encounter the glowing stone "up close and personal." He is changed into a shimmering silver homicidal maniac. As he chases Steve (Nick Adams) and Susan (Suzan Farmer), Steve knocks him down, and causes the floor to catch fire. As the manor burns down around Witley, Steve and Susan escape.
(Links open in new window)
Read more about this film at The Internet Movie Database.
Buy it on VHS or DVD at Amazon.com. at Amazon.com.