Lee Tae-Joon (Lee Dong-Gun) is an excellent insurance fraud investigator. An unexpected case changes his life. He quits his job and recruits talented criminals, that he once caught, to form an elite fraud team. The team includes Hwang Soo-Kyung (Jeon Hye-Bin), Ko Na-Beyol (Kim Sae-Ron), Roy Ryu (Kim Kwon) and Jung Ui-Sung (Yeo Hoi-Hyeon). They scam wealthy criminals and return the money that they stole to the victims.