Tan Luu Tinh Ho Diep Kiem The killer Meng Xing-Hun gets the job the boss of the Lung Men clan, Sun Yu-Bo to assassinate. To this end he tried to infiltrate the group. But Sun Yu-Bo is well protected and it is hard to get at him. While Xing-Hun tried to find a way to fulfill his job, he witnesses a power struggle between Sun Yun-Bo and a rival clan, which is operated with great tactical skill and finesse. When he falls even in a pretty, young lady, he began increasingly to doubt his mission.