Eight individuals trapped in a mysterious 8-story building participate in a tempting but dangerous game show where they earn money as time passes.

Gang-Goo (Sung Dong-Il) and Myung-Joo (Jang Young-Nam) are married and they have three children: Sun-Woo ([Kim Hye-Jun]]), Hyun-Joo (Cho Yi-Hyun) and Woo-Jong (Kim Kang-Hoon). They move into a new home,…