Winter magic, Christmas traditions, and forbidden butterflies in your stomach... Catalina Martinez's role at her sister's winter wedding is clear: as maid of honor, she'll smile and do everything to make the bride's most important day perfect. Even though the groom is Catalina's ex-boyfriend. But when she meets the best man, she finds it hard to keep up her sunny disposition. Luke Darling is the one man Catalina definitely needs to stay away from.