Best Investigation movies of 1984

Actors : Aldo Ray, Renee Harmon, Antoine John Mottet, Christopher Mitchum,
Directors : James Bryan,

An L.A. cop and a reporter team up to find a masked serial killer.

Actors : Pierre Santini, Jean-François Balmer, Sandra Montaigu, Roland Dubillard,
Directors : Jacques Bral,

A private detective ponders another profession until a mysterious woman hires him to solve her roommate's murder.

Actors : Joop Doderer, Ron Brandsteder, Toon Agterberg, Manouk van der Meulen,
Directors : Hans Scheepmaker,

De Cock & Vledder investigate the robbery of an armored truck which leads to several murders.

Actors : Martin Balsam, P.J. Soles, Grigor Taylor, Kit Taylor,
Directors : Colin Eggleston,

A woman living in Dallas discovers that her husband, from New Zealand, is actually a crazed serial killer who murders prostitutes. She helps the authorities arrest him, and he is sent to a ...

Actors : Fernando Poe Jr., Coney Reyes, Fred Montilla, Rey Langit,
Directors : Fernando Poe Jr.,

Portrayed the character of the hired assassin who plots the slaying of the lead character, played by FPJ.

Actors : Yukijirô Hotaru, Yutaka Ikejima, Yoshimi Kai, Rei Matsubara,
Directors : Yôjirô Takita,

The world's greatest detective, Ippei Kuroda, is back and this time hired by a politician to find his estranged daughter. When the daughter is found dead, the mystery deepens. Meanwhile, ...

Actors : Peter Riegert, Joe Mastroianni, Laura Harrington, Carole McGill,
Directors : Martha Coolidge,

A young woman photographer engaged to be married to a businessman investigates a cult in the local club scene. By living out some of her sexual fantasies she faces the truth about her life and helps one of the cult's victims escape.

Actors : Boris Kralj, Marina Nemet, Katalin Ladik, Charles Millot,
Directors : Lordan Zafranovic,

A lighthouse keeper lives on an isolated island together with his wife, ailing father and retarded sister. News of a serial killer stalking the isolated lighthouses makes him leave in order...

Actors : John McCurry, Arch Johnson, Lee Bryant, Farley Granger,
Directors : Richard Friedman,

Haunted by the drowning death of his own daughter, a police investigator embarks on an obsessive 10-year hunt for the identity of a dead boy, to the detriment of his family life.

Actors : Martin Laing, Chris Chescoe, Douglas Storm, David Haig,
Directors : Colin Finbow,

After a nuclear war, a group of children at an isolated farmhouse debate what the outside world might be like. Soon one of them leaves the house to investigate, and finds out that things aren't the way they thought.

Actors : Xabier Elorriaga, Taida Urruzola, Assumpta Serna, Cecilia Roth,
Directors : Carlos Suárez,

Lucia is a computer expert who relieves stress through secret nightly s&m sessions, where she plays the sub. One day, a letter from her supposedly dead ex lover arrives, so she and her new partner investigate the matter.

Actors : Raymond Mayo, Susanne Reed, Jack Kehoe, Allan Kolman,
Directors : Patrick Roth,

A former insurance man and a thief get together and plan to rob a house. However, things don't go as planned, and they wind up getting involved in rape and murder.

Actors : Antonio Mayans, Ricardo Palacios, Carmen Carrión, Lina Romay,
Directors : Jesús Franco,

Private detective Alfredo Pereira is hired by eccentric couple Raden and Eve to find their missing sister, Adriana. Despite his limitations, Pereira soon finds the woman, but foreplay between characters complicates things.

Actors : Eddy Mitchell, Gérard Lanvin, Françoise Arnoul, Raymond Pellegrin,
Directors : Jean-Claude Missiaen,

With the help of journalist Diane Castelain, Parisian police inspectors Leo Gorce and Gu Arenas are trying to solve the murder of a member of the French Parliament, but some dangerous powerful people try to make sure that doesn't happen.

Actors : Richard Ng, Kara Hui, John Sham, Deannie Yip,
Directors : Philip Chan,

Hong Kong detectives Chau and Beethoven return in this sequel to "Pom Pom." This time out, they join forces with their boss, Inspector Chan, to find the notorious Flying Spider, who is ...

Actors : Pamela Collyer, Walter Massey, Nanette Workman, Jack Langedijk,
Directors : Claudio Castravelli,

A girl starts her own investigation after the police fail to catch a local serial killer.

Actors : Wolfgang Kieling, Maximilian Schell, Robert Aldini, Lena Stolze,
Directors : Norbert Kückelmann,

After assaulting a minister, a young defendant claims to have acted entirely by himself. His lawyer doesn't believe him and starts investigations of his own.

Actors : António Assunção, Helena Isabel, Agostinho Alves, Rui Mendes,
Directors : António de Macedo,

Irene, a agent of an insurance company, is in charge of investigating the disappearance of an old librarian, in a provincial town. In the course of the investigation, she knows Ricardo, a ...

Actors : Hamdi Cerchez, Ovidiu Iulian Moldovan, Eusebiu Stefanescu, Cristina Deleanu,
Directors : Gheorghe Naghi,

A fairy tale about a child that disappears and the militia officer that investigates the case.

Actors : Xavier Deluc, Valérie Mairesse, Victor Lanoux, Anny Duperey,
Directors : Yannick Bellon,

In the docks of Bordeaux a well-known homosexual was murdered. Police Inspector Michel Verta starts investigating, when he falls in love with Bernard, a handsome young musician. This not ...