Watch Detective Chinatown 2 full movie online Movies123. Watch Detective Chinatown 2 123movies online for free. Detective Chinatown 2 123Movies: Driven by the desire for the huge reward, Tang Ren (by Wang Baoqiang) tricked Qin Feng (by Liu Haoran) to New York, to attend the World Detective Contest,. Later on, behind the crazy competition, Qin and Tang discovered the real hidden facts of this contest.