Kang Ji-won, a terminally ill cancer patient, is killed by her husband and best friend after she witnesses them having an affair. She wakes up 10 years before the incident…

Woo-ri, 32, and Ja-young, 28, who both dislike being alone but have particular anxieties when it comes to dating, meet through an app.

Kim Ji-young, an ordinary woman in her 30s, suddenly shows signs of being inhabited by other women from her life, past and present.