Poverty. Betrayal. Divorce. Life wasn’t always easy for Kim Kyung-ja. When tragedy befalls a loved one, she decides to take matters into her own hands.

Kim Chun-ae finds herself trapped in a bad romance with a parasitic, would-be K-pop idol. Will she be able to find her way out?

Mo-mi pays a surprise visit to an estranged family member. Some years later, an innocent child suffers the repercussions of Mo-mi’s crimes.

Life behind bars is no picnic, but Mo-mi slowly finds her feet. When a suspicious letter —and visitor — arrive, she confronts a shocking truth.

Mo-mi puts her plan in motion. Kyung-ja sets out to settle the score. Will the two foes find justice, once and for all?