Cross Of The Seven Jewels (1987)

aka’s: La Croce Dalle Sette Pietre/
Talisman

A man (Eddy Endolf) becomes a werewolf after being cursed by a black magic society. Only a jeweled necklace he wears can stop the transformations from taking place. When the necklace is stolen by a petty thief on a busy street, he must attempt to infiltrate the local crime syndicate in an attempt to get it back before the next full moon. Also stars Annie Belle and Gordon Mitchell.