Bad Moon

Bad Moon is a movie starring Mariel Hemingway, Michael Paré, and Mason Gamble. After being bitten by a werewolf in the jungle, Ted looks for a cure. His lawyer sister, with a son and dog, invites him to park his camper by her house...
One man's struggle to contain the curse he hides within... and his last-ditch attempt to free himself with the love of family. But when it looks as if he is losing his battle, and endangering all he holds most dear, the family dog, Thor, is the last hope for his family's survival... and the end to his Werewolf curse.