All Kim Mo-mi wanted in life was to be in the spotlight. Her double life as Mask Girl allowed her to do just that. How long until the secrets unravel?

True love, or plain infatuation? Lonely recluse Ju Oh-nam is Mask Girl's number one fan. Then one day, an astonishing discovery brings him closer to her.

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?