A lowly waiter is determined to learn kung fu from the local barber who just happens to be a kung fu master.

La Pin, a sinister sorcerer from Thailand who earns money by placing spells of domination on people. Fa La-ting is his zombie murderess, controlled by a metal spike which La Pin has driven into her skull, and rival sorceress Sofia sends her sexually ravenous midget ghosts after Fa to avenge one of the zombie's murder victims. The main story line concerns a young man named Ming who pines for a beautiful girl, Chun Yin, and yearns to win her away from her suave boyfriend Wong Wai. Ming goes to Nanyang and becomes the sorcerer La Pin's apprentice, picking up enough knowledge to invite the couple to Thailand, and set his plan of enslaving Yin and murdering Wai in motion. After placing the Crazy Love Curse on his intended victim, however, Ming is in over his head, as Wai enlists the aid of the powerful sorceress Sofia to get his beloved Yin back.

As the Cantonese 'Jane' Bond films evolved, the genre became less Bond-like, cutting down on the staging of fights and the flaunting of secret weapons. The heroine(s) remained an action figure, complete with quick wits and agile prowess, but the stories increasingly took on the jewel theft plot and the twilight world of decadent deviance. The Mysterious Sisters is no exception as director Ng Wui renders high class thefts in the style of the classic French film Rififi, and long stretches of action that unfold without dialogue.

Talented, young and handsome, Siu is a hero to the town folks and idol of the girls. Still, he has an avowed enemy, bad man Kam. Lately, several girls are murdered immediately after they met Siu. Sheriff Chiu is unable to find a lead but decides to trail Siu. Siu calls on his long time girlfriend Sien Sien but find her grieved by her sister's disappearance. Something untold does happen to Siu as he walks into an ambush set up by Kam. Chiu rushes to Siu's rescue and incidentally finds blood coming out from a porcelain statue. The statue turns out to be an enameled corpse...

Kind-hearted Fatso Ng earnestly entreats Buddha to save his midget brother Tiger from an early death. In a passionate outburst, he pledges half his lifespan in return for sparing Tiger. It seems to work ....... too well. Fatso had been told last year by reliable fortune teller Big Mouth Kwan that he would have a long life, but his fortune has now changed. Meanwhile, Tiger is making the most of his renewed lease of life, working hard to get into the panties of three busty nurses. Fatso "spoils" the fun by following Big Mouth Kwan advice - avoid sex if you want any chance of changing your bad fortune. Fatso begins to lose his sanity and goes into the hospital. His only hope of being saved is the weird hospital shrink, who believes in the occult.

An illegal dealing of a soda-canned bomb between a crooked Hong Kong cop and two Japanese traffickers goes bad after an associate decides to go against their plans...