On New Year's Eve, a video call from her 18-year-old self forces Adele to watch her husband betray her in real time. Trapped in eight years of cold revenge, she discovers a second timeline where she chose to walk away—and found real love. Caught between two sets of memories, her ex-husband Justin spirals into madness searching for the woman he destroyed, while Adele must finally claim a future that is truly her own.