The Japanese karate master Muhashi spent some time in Hong Kong studying various Shaolin martial arts styles. Soon the narcotics brigade calls in his help to combat a powerful drug and prostitution syndicate.

The powerful mobster Leung, who is protected by the dangerous and wicked Huan Fai, sells two hundred Japanese weapons and ammunition to a Chinese gang. He uses the smuggler Luy Fu to bring the weapons but the smalltime thief Kim and his gang heist the shipment on the road and dump the cargo into the sea. However, he lures Luy Fu and asks a large amount to return the weapons with the intention of traveling abroad with his brother. Meanwhile Kim befriends Fan Ming, an undercover police office from Shanghai that is investigating the illegal activities of Leung. When the mobster finds that Fan Ming is a policeman, Leung ambushes him and Huan Fai and his men stab the officer that falls from a cliff into the sea. Kim brings Fan Ming's fiancée Ipi Feng to the house of his lover, the prostitute Hung, and tells Ipi Feng that her fiancé was murdered by Leung. She decides to revenge the death of her beloved Fan Ming with tragic consequences.

A horror anthology. In the first, a man and his pregnant wife help an old woman bury a covered pot in a field. Believing that the pot contains treasure, they kill the old woman, only to find that it contains nothing but bones. The pregnant woman goes into labor over the dead woman's body, and blood from that event drips onto the corpse. The baby, when born, is fully able to bite his father's finger off and kill him. The second episode concerns an adulterous couple who, when discovered by the woman's husband, nail him up in a box and try various means to dispose of him, all of them somehow lacking finality. The final episode concerns a man who is wrongly accused and executed for a murder he did not commit. Using a bit of magic as he dies, he is able to return to his home for a few days as a very vigorous ghost.

Two brothers, one wrongly accused of a crime, go on a mission of vengeance to find the men who framed him.