Hundreds of cash-strapped players accept a strange invitation to compete in children's games. Inside, a tempting prize awaits — with deadly high stakes.

Action & Adventure, Mystery, Drama

Choi Gwi-hwa (Kim Gi-min), Ha Soo-ho (Player 145), Lee Jung-jae (Player 456), Lee Byung-hun (Frontman (Hwang In-ho)), Yim Si-wan (Player 333), Wi Ha-jun (inoccupation), Park Gyu-young (Soldier No.11), Park Sung-hoon (Player 120), Yang Dong-geun (Player 007), Kang Ae-sim (Player 149), David Lee (Player 125), Roh Jae-won (Player 124), Jo Yu-ri (Player 222), Park Hee-soon (Deputy Commander), Kang Ha-neul (Player 388), Heo Sung-tae (Jang Deok-su/Player 101)