Chen Jinsheng, a student majoring in western medicine during the period of the Republic of China, helps his senior Master Leng to run Fumo Detective Office, a private detective agency. Liu Yidao, the ace headsman in the past Qing Dynasty, has his family members murdered by his disciple Niu Er. Chen Jinsheng and Master Leng tried to investigate the case through all kinds of traces. However, more mysterious murders are followed, such as the billionaire Tian Buhuan in the northern city, the food...