Trapped in a deadly cursed Mafia game, the students of Yoo-il High must play the game to survive while unraveling the mysteries behind the curse.

Lee Jae-in, Kim Woo-seok, Choi Ye-bin, Cha Woo-min, Ahn Ji-ho, Jeong So-ri, Kang Seol, Oh Jung-taek, Song Byeong-geun, Kim So-hee, Bae Jae-young, Chun Young-min, Suh Dong-hyun, Do Byeong-hun, Hong Min-gi, Park Ju-won, Park Yoon-ho, Kim Gyu-bin, Hong Seong-pyo, Park Sang-eun, Kim Min-seo