Young Valerie (Amanda Seyfried) feels torn between two men. She loves Peter, but her parents intend that she marry wealthy Henry. Valerie and Peter plan to run away together, but before they can put the plan into action, her sister is killed by a werewolf. The villagers call in Father Solomon (Gary Oldman), a famous monster hunter, to help, but when Solomon warns that the beast takes human form by day, Valerie begins to suspect that the werewolf is someone she loves.