Hong Kong crime movie from 1983

A Hong Kong cop's first undercover assignment sends him on a psychological downward spiral, unable to separate his two identities after unearthing a connection between his supervisor and the crime syndicate he's investigating.

To help his sister with her debts, John goes to a pawnshop when robbers rush in. John draws suspicion from the police and only escapes from them with the help of Bunny, who is a kid running out from an orphanage. John and Bunny, therefore, become good friends.

Zhou Heung Kong (Anthony Wong) runs the film projector in a Hong Kong cinema and staunchly embraces a left-wing viewpoint. Dedicated to his work, he screens movies over the course of decades, while also witnessing turbulent events of the times, including riots and other indicators of social change.

Hong Kong detectives Chau and Beethoven join forces with Mr. Boo in a daring mission involving a jewelry heist and a museum caper.

John Shum leads an expedition to an supposedly deserted island only to find out that it's inhabited by a group of seriously demented characters, lead by Peter Chan Lung. This is a family that stays together, slays together and when the youngest one is refused in marriage to one of the young girls of the troupe they turn into savage maniacs.

In Thailand in the 1950s, Detective Au Wei is shot to death by Cha Tin-Hung in a raid because of Cha's involvement with black market diamonds and jewelery. Wei's daughter Chun Chun swears revenge, helped by Wei's friend Yeh Tai-kor, a professional con-man.

Lo Tung and his friend Malted Candy, pedicab drivers working the streets of Macao, have both fallen in love. The problem is that both their objects of affection - one a baker, the other a prostitute - are working under cruel and lecherous bosses. Somehow, the pair must find a way to win the ladies' hearts and free them from their unpleasant jobs.

While vacationing in Paris, King Kong is kidnapped by a British agent called James, who seeks to recover one of the stolen crown jewels, the Star of Fortune, supposedly at the request of the Queen of England. The jewel is hidden at the Hong Kong Police Headquarters and Kong will have to steal the jewel without his partner-in-crime, Detective Albert 'Baldy' Au, finding out. When James' devious intentions are revealed and Baldy and his wife, Supt. Nancy Ho, discover Kong's heist, Kong finds himself at a crossroad.

A private investigator and a police inspector team up to pursue a notorious mobster, who is plotting to milk an old millionaire out of his highly-valued stocks and bonds. Along the way, the investigator crosses paths with a femme fatale and silly gangsters.

Five friends are released from prison and do their best to stay out trouble. While trying to mind their own business (and run their 5-Star Cleaning Service), they are caught up in a war between rival Triad gangs fighting for control of the counterfeit currency market.