无防备都市

South Korea's wide-area search team has the best criminal police in the country, a department that specializes in investigating high-IQ crimes. Among them, Zhao Daying's nickname is the unsolved monster, and he has always been a loner with a fiery personality. On this day, Zhao Daying, who has been investigating serial murders, was ordered by his superiors to stop the case in hand and investigate a commercial theft case. Zhao Daying is very reluctant to investigate this case, because he once had an unforgettable painful experience

Bai Qiangwei was an auspicious gang of thieves The leader has impeccable beauty and superb theft skills. In order to expand her power, she plans to invite Jin Manyu, a master thief who has just been released from prison, to join her. However, Jin Manyu has just been released from prison and wants to live a peaceful life away from the world. , It is not an easy task to convince him. In order to grasp the latest news of the criminal group, Zhao Daying sneaked into the underworld. By chance, he rescued Bai Qiangwei who was being hunted down. The two fell in love with each other at first sight.