Good thriller. Kept the suspense all along with unexpected twist in the end. Zhang Ziyi was super creepy. It had some shocking moments that completely takes you by surprise. Serial killing, Biblical prophecy (Four Horsemen of the Apocalypse), Gore, physiological suspense. What else do you need to keep your attention :)
Plot: Detective who is distant from his kids and lonely from his wife's death tries to solve a string of killing that were done by a religious cult who calls themselves Four Horsemen of the Apocalypse. He soon finds out that he also has links to the murders.
I didn't like the ending. It just ended pretty quick.