#16. New Jack City (1991)

Storyline: The gangster Nino has a gang who call themselves Cash Money Brothers. They get into the crack business and not before long they make a million dollars every week. A cop, Scotty, is after them. He tries to get into the gang by letting an ex-drug addict infiltrate the gang, but the attempt fails miserably. The only thing that remains is that Scotty himself becomes a drug pusher.

Plot Keywords: undercover cop, partner, drug lord, drug addict, gang member, raw, disheartening ...

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#17. Analyze This (1999)

Storyline: Living in the shadow of his famous psychiatrist father, with multiple issues to deal with while getting ready to remarry, the New York City psychologist, Dr Ben Sobel, has one more problem to take care of, after a fender bender with the powerful mob boss, Paul Vitti. Secretly suffering from intense anxiety attacks that render him incapable of doing what he is best at, the notorious gangster decides to pay the good doctor a visit, hell-bent on resolving his deep-seated issues before the annual meeting of Big Apple's Mafia Dons. Now, Ben has a pressing two-week deadline to come up with an effective solution, as his conflicted but dangerous patient takes no for an answer. Can Ben analyse this?

Plot Keywords: mobster, psychiatrist, gang member, fiancée, father, undercover cop, amusing ...

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#18. Sister Street Fighter (1974)

Storyline: This time Koryu heads to Yokohama in search of a woman named Birei, kidnapped by diamond smugglers who move their hot rocks by surgically implanting them into the nubile buttocks of Chinese prostitutes. Koryu's older sister, working as a jewelry designer, is secretly if unhappily involved with the gangsters.

Plot Keywords: martial artist, undercover cop, drug lord, sister, partner, master, brutal ...

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#19. My Father Is a Hero (1995)

Storyline: Kung Wei (Jet Li), a undercover Chinese cop sent to track down a notorious criminal Po Kwong (Yu Rongguang) in Hong Kong. There, he ultimately teams with his son Johnny Kung (Xie Miao) and a another cop Anna Fong (Anita Mui), the both together are an incredible Kung Fu master-in-the-making. Together, they lay down the law in the final fight on Po.—Dimension Films

Plot Keywords: undercover cop, police detective, son, gangster, wife, villain, outlandish ...

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#20. Gone in Sixty Seconds (2000)

Storyline: In exchange for his little brother's life, the reformed car thief, Randall "Memphis" Raines, has to do the impossible: in less than three days, he has to steal not one, but fifty exotic supercars for the ruthless crime lord, Ray Calitri. To stand a chance of pulling off this intricate and time-sensitive grand theft auto, once more, Memphis has to rely on his old gang--his knowledgeable mentor, Otto; the old friends, Sphinx and Donny; his reluctant ex-girlfriend, Sway, and a band of tech-savvy young thieves--however, the police are already onto them. Now, fast Lamborghinis, precious Ferraris, luxurious Porsches, and Eleanor--a rare Ford Shelby Mustang GT500--are just some of the cars in Raines' long list. Can Memphis execute the perfect car heist?

Plot Keywords: car thief, friend, lover, brother, crime boss, undercover cop, thrilling ...

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#21. Diamantino (2018)

Storyline: Diamantino, the world's premiere soccer star loses his special touch and ends his career in disgrace. Searching for a new purpose, the international icon sets on a delirious odyssey where he confronts neo-fascism, the refugee crisis, genetic modification, and the hunt for the source of genius.—Gabriel Abrantes & Daniel Schmidt

Plot Keywords: soccer player, adopted son, fan, wealthy man, undercover cop, hilarious, dreamy ...

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#22. Truth or Consequences, N.M. (1997)

Storyline: A drug deal goes wrong causing a foursome, led by a lunatic killer, to go on the run. A couple in a recreational vehicle are initially kidnapped, but soon the male hostage is emulating his kidnappers and wants to stay involved in the chase.—John Sacksteder <jsackste@bellsouth.net>

Plot Keywords: ex-convict, mob boss, hit man, psychopath, undercover cop, yuppie, intense ...

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#23. In Too Deep (1999)

Storyline: Jeff Cole is a recent graduate of the Cincinnati police academy who dreams of working undercover. His wish is granted and through success is given the task of taking down state-wide crack dealer Dwayne Gittens aka "God". Gittens is known as a family man and a man of the people, contributing to his community and helping those in need. However, there is another side to him, a ruthless leader of a criminal empire who will torture or kill anyone without question. Over time, Cole develops a close friendship with Gittens. Cole's superiors worry that the line between cop and bad guy is getting blurred and that both identities are becoming one. Cole's loyalties are put to the ultimate test just as there is enough evidence to take Gittens down for good.—Dalton M

Plot Keywords: drug lord, undercover cop, girlfriend, drug dealer, commander, dark, gory ...

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#24. Innocent Blood (1992)

Storyline: Marie has two appetites, sex and blood. Her career as a vampire is going along fine until two problems come up, she is interrupted while feeding on Sal (The Shark) Macelli and she begins to develop a relationship with the policeman who has been trying to put Sal away. Sal wakes up in the morgue very confused and very thirsty. He goes back to his old haunts and begins to create an organized crime family of vampires while Marie and her policeman lover hunt him.—John Vogel <jlvogel@comcast.net>

Plot Keywords: undercover cop, vampire, mafia boss, gangster, chilling, gory, campy ...

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#25. Murder on Diamond Row (1937)

Storyline: London's jewel thieves are under the thumb of a mysterious fence, who ruthlessly exposes any thief who crosses him. Desperate, Scotland Yard re-hires ex-Inspector Barrabal who, as a known drunkard, is ideally suited to go undercover with a faked criminal record (which may spoil his chances with lovely Carol Stedman). Interested parties: Larry Graeme, cat burglar; his girl, sexy dancer Tamara; Collie, sardonic reporter. Then murder makes apprehension of the Squeaker urgent.—Rod Crawford <puffinus@u.washington.edu>

Plot Keywords: detective, alcoholic, undercover cop, fence, thief, beautiful woman, thrilling ...

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#26. Circus of Horrors (1960)

Storyline: In 1947 England, a plastic surgeon must beat a hasty retreat to France when one of his patients has ghastly problems with her surgery. Once there, he operates on a circus owner's daughter, deformed by bombs from the war. Later he becomes the owner of the circus, and continues transforming disfigured women into the beautiful stars of his show. The police and a nosy reporter (as well as Scotland Yard) become interested when the women who want out of the circus begin dying in freak accidents, and they begin suspecting the good doctor is responsible.—Ed Sutton <esutton@mindspring.com>

Plot Keywords: plastic surgeon, circus performer, father, assistant, undercover cop, dark, eerie ...

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#28. Brick Mansions (2014)

Storyline: In a future where Detroit's most dangerous criminals occupy the city's deserted brick mansions, an undercover cop joins forces with an ex-convict to defeat the notorious drug kingpin who has taken the mayor hostage. Detroit has fallen to crime, and in an effort to contain it, authorities have sealed up the inner city with a massive wall. Once you're inside, you never get out. Lino (David Belle) is an ex-con who's trying to make the best of life in this urban penitentiary when his girlfriend is abducted by ruthless drug lord Tremaine (RZA). Meanwhile, as undercover cop Damien Collier (Paul Walker) contends with deep-rooted corruption within the police department, Tremaine imprisons the mayor, and threatens to detonate a powerful weapon unless he's paid millions in ransom. Despite their differences, Lino and Collier are the only men capable of entering the city, and defeating Tremaine's gang. With the clock ticking, this mismatched duo must now prevent Detroit from being completely ...

Plot Keywords: criminal, undercover cop, killer, ex-convict, father, police officer, bleak ...

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#29. Ungli (2014)

Storyline: Four friends Kalim (Angad Bedi), Gautam (Neil Bhoopalam), Maya (Kangana Ranaut) and Abhay (Randeep Hooda) form a gang called the "Ungli" gang which fights against corruption prevailing in society. Their job is to target corrupt people and punish them in a very unique manner. Due to increased popularity and their high profile targets they are sought by Mumbai police department as "wanted". Their case is the responsibility of ACP Ashok Kale (Sanjay Dutt) and inspector Nikhil Abhyankar (Emraan Hashmi). Nikhil disguises himself as a college student and joins the ungli gang with hidden motive of arresting them. But soon, his heart changes after learning the story of why ungli gang waw formed. Meanwhile, Kaale is compelled to seek help from the gang when Nikhil helps him expose the gang's greatest target, B.R. Dayal (Mahesh Manjrekar) and his son Anshuman. Kaale instigates a sting operation against the Mumbai police and is successful in preventing his transfer. Kaale thanks the "Ungli" gang and he assures them that the city won't need an "Ungli" gang as long as the administrations are running properly in accordance to public demands.

Plot Keywords: young man, friend, police officer, undercover cop, powerful, confident, fascinating ...

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