Policeman Keisuke Tadara (Mukai Osamu) works at a police station in a shopping district and is trusted by others because of his hard work. However, Tadara has a past and a side that no one knows about... that is "Swindler K" who targets those who cannot be punished by the law! Tadara used to be a detective in the second investigation section in charge of hunting down a large-scale fraudster. As a policeman, why does he wear the mask of a fraudster! ? What is the past hidden behind it? Going beyond the law, deceiving the bad guys, and even deceiving the police who are his own family, Tadara's real purpose is...