Heo Dong-won

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.

Dong-eun’s end game comes into focus as she sends Jae-jun a troubling package and orchestrates a plan to take down Yeon-jin and Lee Sa-ra.

Hye-jeong finds an incriminating recording on Myeong-o’s tablet, and Hyeon-nam receives an unwelcome visitor as she prepares to send her daughter abroad.

Yeon-jin threatens Hyeon-nam after discovering her involvement with Dong-eun. Yeo-jeong devises a way to get the truth out of Yeon-jin.

Son Myeong-o’s sudden absence causes tension in the friend group. Dong-eun finds her trust in Kang Hyeon-nam tested.

While Ha Do-yeong comes across an intriguing game opponent, Yeon-jin realizes her deepest secrets are at stake when she tries to intimidate Dong-eun.

Already on edge over the past resurfacing, Yeon-jin grows more anxious when she learns about her daughter’s new homeroom teacher — and of a sudden death.

Gi-hun and his team take turns keeping guard through the night. The masked men encounter trouble with their co-conspirators.

As alliances form among the players, no one is safe in the dorm after lights-out. The third game challenges Gi-hun’s team to think strategically.

A few players enter the next round — which promises equal doses of sweet and deadly — with hidden advantages. Meanwhile, Jun-ho sneaks his way inside.

Split on whether to continue or quit, the group holds a vote. But their realities in the outside world may prove to be just as unforgiving as the game.