“Chongqing’s known for two things”, a voice-over narrates at the beginning of this ambitious crime drama. “Tunnels… and hot pot restaurants.” It’s a combination that proves to be of essential importance for a quartet of thieves who decided to rob a bank. They almost get caught, but manage to escape through a hole in the floor, leading them into Chongqing’s underground tunnel complex. Slowly revealing the origin of the hole and how the heist pans out, director Yang Qing brings together suspense, bloody violence and even a pinch of comedy in this unforgettable dramatic thriller.