Baek Jang-mi is a fiercely attractive, sexy pickpocket. While residing in Japan, she is caught at the scene of a crime with her bodyguard Choi Seong-su and is forced to return to her home country to avoid the authorities. Utilizing the skills she learned in Japan, she opens a tattoo parlor, but a burning desire to expand the pickpocket organization in Korea lingers. She forms a new gang, calling it the Samsung Gang, and works to bring her dead mother’s old friend and legendary pickpocket Kang Man-ok into the fold. Jang-mi launches her activities in the heart of Dongdaemun.

Cho Dae-young is a natural detective with the highest number of arrests to his credit within his team. An elite cop who deals with the most heinous crimes, he is ordered to join the task force to crack down on the pickpockets, he is reluctant to work on the unit due to his painful past: His pickpocket mother has a criminal record spanning 17 arrests. Despite his reservations, however, he is convinced to join the team by his old friend, Lieutenant Oh. Vowing to undo his mother’s wrongs, he joins the investigations, armed with his police instinct and passion for the work.

With her Korean pickpocket gang, Baek Jang-mi begins to make big money. One day after a successful heist she is attacked by members of their rival Twin Gang, but she is rescued by Dae-young, who was investigating a case nearby. The two immediately feel an attraction for each other, but after Jang-mi discovers Dae-young is a cop, she quickly leaves the scene. Meanwhile Dae-young, while looking through some police files handed to him by Lieutenant Oh, finds out that the woman he saved is none other than Baek Jang-mi. He senses an inevitable fight looming on the horizon.

The WAIS traces of Jang-mi’s movements indicate she had been in Japan each time a huge pickpocket heist took place. Nonetheless, Dae-young goes after Jang-mi, but becomes mesmerized by her devastating beauty and feels himself falling prey to her magic…