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 and decides to seek revenge with the help of Yu Ji-hyuk, a director at the company where she works. Now, she must reclaim her fate and eliminate the trash from her life.
During the company's autumn workshop, Ji-won and Su-min engage in a fierce battle of wits. It's the first time they confront each other so sincerely. Su-min becomes angry and attempts to cross the line to hurt Ji-won. Eventually, an incident occurs at a supermarket tasting event involving Min-hwan.