An inspector of the Royal Hong Kong Police Force, Ching, and the cover-up, Ma successfully cracked down on a Criminal Society, The head of the gang, Wong , was also arrested.

Detained in prison to await court trial. Wong employed an agent to pay revenge on Ma. Ma was so seriously injured that he became a’vegetable man’ and his wife and daughter were raped.

Ching was on his way to guard the exhibits he heard the bad news about Ma. He was emotionally upset and returned to the police station to find out what happened but was mocked by his superior. It was followed by a quarrel.

In another development, the exhibits were robbed on the way. As result, Wong was acquitted. Ching was suspended from his duties. In great anger, Ching tendered his resignation.

In the hospital, Ching met Ma’s best friend who was previously a trickster. They both saw what had become of their best friend and decided to take a revenge in the interest of public order and for their own sake.

They found out Wong was indulged in sex and gambling. Targeted upon his weaknesses, they proceeded with their device. Firstly, they sent a beautiful lady to approach Wong. Then, under the arrangement of the lady, they had a chance to gamble with Wong as Wong was in need of the money. If Wong lost, he would be in great trouble………………………