怪物Lucia is single mom of a little girl that loves Christmas, Leo. One night she falls in love on a blind date with Sergio, desperate of how to tell her daughter the news; tricks her by telling her that his new boyfriend it's actually Santa. Now the boyfriend has to prove himself and convince her and he does, but eventually she finds out. The illusion breaks but the magic remains so she visits Sergio in his restaurant to give him her letter, asking not toys but a family, and they both granted her wish.