On Christmas Eve, at a small bar, Nam is lost in thought, trying to understand why his relationship with Nhi fell apart. At the same time, Trang is rushing around, searching for a drunken man who mistakenly took her coat. Inside the coat lies a precious keepsake tied to her and her lover. Nam decides to help Trang retrieve it, and in the process, he gradually uncovers the true reason why Nhi left him.

"A young man is determined to win back his ex. Along the way, he helps a young woman find a lost item, leading him to a deeper understanding of his own past relationship."