A man becomes a werewolf after being cursed by a black magic society. Only a jeweled necklace he wears can stop the transformations taking place.
G.C. Pictures
Tomb of the Werewolf
Blood Moon
Never Cry Werewolf
Night of the Werewolf
The Beast and the Magic Sword
The Wolfman
WolfCop
Were
An American Werewolf in Paris
Coyote