How would you react if three years after the death of your father, you receive a letter signed by him inviting you to visit an abandoned house in the middle of nowhere in China? Curious in nature, you decide to set off on this adventure. Here’s the snag, when you arrive in front of the house (which looks more like a bunker), you realize that there are other visitors summoned as well. Four guys show up with the same letter you have! All five characters, Monk, Casino, Black Jack, Shang and Poker have something in common.