During the period of 1957, Li Luofu was appointed by the local government department to go to Britain for further study, hoping that he would set up an anti-gang unit after returning to Hong Kong to eradicate the evil forces.

After returning to Hong Kong, Li Luofu cracked more than 300 documents overnight and became famous in one fell swoop. Li Cai sent Li Luofu a huge sum of money. Li Luofu's assistants Hua Zheng and Xiao Bing traced the evidence of Li Caifa's poisoning to a foreign garment factory. Unfortunately, Xiao Bing was attacked, his right hand was cut off by masked men and the factory was burned down. So Li Luofu personally went out to arrest the store manager and induced him to give up the evidence of Li Caifa. Unexpectedly, on the day of testifying in court, Wang Cai was wrapped in a bomb and ended up with a witness. Although Li Luofu failed to convict Li, he used special administrative power to arrest and expel Li.

Finally, Li Caifa fled back to Hong Kong and took Li Luofu's wife.