Ron Douglas takes a holiday in the mountains to recover from his bride running away on their wedding day. There he meets Cynthia Mitchell, who invites him home for Christmas dinner with her family, cannibalistic descendants of the Donner Party. He unexpectedly bumps into his ex-fiancée, who is engaged to one of Cynthia's close relatives. He also discovers that he is going to be killed and eaten by Cynthia's family. He manages to successfully escape with his ex-fiancée and she agrees to go through with the wedding.