Three not-so-bright thieves decide to get rich by attempting the most audacious heist imaginable. Their plan? To raid police evidence lock-up and make off with small fortune in cash. Complications arise from the against-all-odds romance between thief Woo-Jin and lady detective Yun-Ah, computer game rivals since childhood.

This story was created with cinematic imagination based on the true story of a North Korean defector family and a Mongolian border guard who chose the escape route to Mongolia.