On the occasion of the wedding of the fifth son of the Hua family, a tragedy breaks out in the new house, which seems to be caused by the "Seven Knives", a gangster killer organization. Hua Wu Gongzi mysteriously disappeared.
Lu Xiaofeng and Hua Manlou want to investigate the truth, but the road to investigation is full of difficulties.
The killers among the seven knives appear one by one, and the road to the truth is filled with mist...
Detective and pseudo-melancholy beautiful boy