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

Starring Lee Jung-jae, Lee Byung-hun, Wi Ha-jun, Yim Si-wan, Jo Yu-ri, Kang Ae-sim, Park Sung-hoon, Park Gyu-young, David Lee, Roh Jae-won