Mantis, an ace assassin, returns to the contract killer industry after a hiatus, encountering his trainee friend Jae-yi and a retired legendary killer Dok-go, who now runs the organization.
Cast: Yim Si-wan, Park Gyu-young, Choi Hyun-wook, Bae Gang-hee, Hwang Sung-bin, Yoo Su-bin, Jeon Bae-soo, Jo Woo-jin, Sul Kyung-gu, Jeon Do-yeon
