Police Captain Zhong Wen (Chan) knows all about sacrifice. He's always been too busy chasing bad guys to be a father to his daughter, Miao (Jing Tian). Tonight however, he's seeing her for the first - time in years, and meeting her fiance, club owner, Wu Jiang (Liu Ye). But, Wu has a dark side, and a secret score to settle with his soon-to-be father in law, and plans to take Zhong, Miao and the whole club hostage. Only Zhong can avert the carnage, but is he willing to risk everything to stop this night going down in history?