Best Investigation movies of 1975

Actors : Jacqueline Bisset, Martin Ritt, Robert Shaw, Jon Voight,
Directors : Maximilian Schell,

While investigating a high-profile murder case, a savvy but unorthodox veteran police inspector has to cope with a bad conscience, bad health, an overzealous partner, a timid superior and ...

Actors : Jean-Louis Trintignant, Jacqueline Bisset, Marcello Mastroianni, Aldo Reggiani,
Directors : Luigi Comencini,

Police commissioner Santamaria is investigating the murdering of the ambiguous architect Mr. Garrone. The investigations soon drive him into the Torino's high society. Santamaria suspect ...

Actors : Joseph Cotten, Tomas Milian, Maria Fiore, Mario Piave,
Directors : Umberto Lenzi,

A biker's brother is killed while investigating the kidnapping of a young boy, the byproduct of a war between two crime families. The biker vows to get revenge by finding the kidnapped boy and destroying the two families.

Actors : Jean-Pierre Aumont, Michèle Morgan, Philippe Léotard, Serge Reggiani,
Directors : Claude Lelouch,

A very unorthodox police inspector is assigned to investigate a millionaire's mysterious death.

Actors : Mel Ferrer, Lia Tanzi, Claudio Cassinelli, Gianfranco Barra,
Directors : Sergio Martino,

A young prostitute is found brutally killed and is up to detective Germi (Claudio Cassinelli) the investigation of the case, as the search progress he uncovers a girls trafficking ring with connections to powerful people.

Actors : Reatha Grey, Stan Kamber, Marlo Monte, Tiffany Peters,
Directors : Jamaa Fanaka,

A proud black man does time in jail where he is subjected to heinous experiments. Once released, he goes about extracting vengeance on those who put him in prison. This includes both ...

Actors : Françoise Fabian, Giancarlo Badessi, Franco Nero, Pierluigi Aprà,
Directors : Damiano Damiani,

The latest success by film-maker Giacomo Solaris is a crime thriller about a judge who gets too friendly with the Mafia and is murdered. A resentful Sicilian magistrate orders the film ...

Actors : Thalmus Rasulala, Dean Martin, Eugene Roche, Denise Nicholas,
Directors : Paul Bogart,

A San Francisco attorney (Dean Martin) is hired to defend a black militant accused of murder.

Actors : Jacqueline Bisset, John Phillip Law, Sam Wanamaker, Christopher Plummer,
Directors : Peter Collinson,

Helen has been incapable of speech since seeing her husband die - will she become the target of a deranged serial killer targeting disabled people?

Actors : Paul Muller, Jesús Franco, Martine Stedil, Lina Romay,
Directors : Jesús Franco,

In Puerto Rico, a down-on-his-luck private detective is hired by a woman to take compromising photos of her husband, a notorioous nightclub owner. After he finishes the job, he finds ...

Actors : Sylvia Kristel, Jean-Louis Trintignant, Philippe Noiret, Anicée Alvina,
Directors : Alain Robbe-Grillet,

When Carolina (Anicee Alvina), the daughter of wealthy banker Georges de Saxe (Philippe Noiret), is reported kidnapped, it is upsetting to him even though he knows it isn't true. The ...

Actors : Silvano Tranquilli, Luciana Paluzzi, Claudio Gora, Henry Silva,
Directors : Umberto Lenzi,

When a crook gets framed as a drug kingpin, the mob decide to "off" his wife. Revenge is the name of the game, and the manhunt is on!

Actors : Philippe Lemaire, Robert Woods, Emma Cohen, Françoise Brion,
Directors : Jesús Franco,

A nightclub singer is haunted by the ghost of her late father. The dead man summons her through a mirror, forcing her to commit a series of violent crimes.

Actors : Delia Boccardo, Luc Merenda, Mel Ferrer, Michele Gammino,
Directors : Sergio Martino,

Starting the investigation of a murder mystery, a police man is to investigate dangerously top politicians and military. A chain of suicides takes its toll among the current and past ...

Actors : Vic Christy, Fritz Ford, Mike Mazurki, Jimmy Kane,

Challenge To Be Free captures the excitement of a marathon manhunt through 1,000 miles of the most rugged and beautiful terrain in the Alaskan Wilderness.

Actors : Franco Fabrizi, Arthur Kennedy, Claudio Cassinelli, Sara Sperati,
Directors : Luciano Ercoli,

Luciano Ercoli's Killer Cop is actually an entirely serious Italian crime thriller (or 'Poliziotteschi'), that handles themes such as murder and terrorism. ..

Actors : Jon Finch, Tony Beckley, Judy Geeson, Christopher Lee,
Directors : Sidney Hayers,

Anonymous notes accuse a psychiatrist of having murdered his wife. A bedraggled policeman attempts to uncover the truth behind her disappearance.

Actors : Joseph Fürst, Judith Anderson, Alex Cord, Michael Craig,
Directors : Terry Bourke,

A sheriff investigates why the guests at a local hostelry check in, but never check out.

Actors : Ling Chia, Yi Chang, Feng Hsu, Yu Wang,
Directors : Chung Hsun Tu,

The leader of a local town militia is killed just before his militia is about to be adopted into the government force. It's up to Captain Wu to investigate matters and bring all bad guys to justice. Star studded action packed golden oldie.

Actors : Urmila Bhatt, Aruna Irani, Agha, Asrani,
Directors : Raghunath Jhalani,

After a long murder investigation, a police investigator finds the killer closer to home than he imagined.