Best Investigation movies of 1970s

Actors : Edwige Fenech, Alvaro Vitali, Renzo Montagnani, Michele Gammino,
Directors : Nando Cicero,

Doctor Eva Marini takes up a position at an army base to investigate the sexual behavior of the Italian male soldier and soon finds out she's taken on more than she bargained for.

Actors : Paula Kelly, Lino Ventura, Isaac Hayes, Fred Williamson,
Directors : Duccio Tessari,

An ex-convict priest and a framed former policeman hunt a machine-gun killer behind a bank robbery.

Actors : Joan Collins, Judy Geeson, George Peppard, Oskar Homolka,
Directors : Sam Wanamaker,

A British intelligence agent must track down a fellow spy suspected of being a double agent.

Actors : Ernest Borgnine, James Blendick, Henry Silva, Cliff Robertson,
Directors : Harvey Hart,

When boredom, pride and a mad second of misjudgement leaves a hunter shot dead by one of five combat veterans also hunting in the Canadian hills, it is expected a police investigation will ...

Actors : Bernard Farber, George Ardisson, José Torres, Tony Kendall,
Directors : Pasquale Squitieri,

Framed for a bank robbery, bounty killer Django's brother, Steve is lynched. Django hunts down Sartana, Steve's supposed accomplice, but finds him innocent also. The two men seek out the ...

Actors : Donald Pleasence, Nancy Kwan, Jennifer Rhodes, Ross Hagen,
Directors : Lee Madden,

A big-game hunter brings a killer leopard to his private island and turns it loose so he can hunt it down. However, unexpected visitors arrive at the island and interrupt his hunt. ...

Actors : Lau Chan, Yi Tao Chang, Dragon Lee, Lik Cheung,
Directors : Joseph Kong,

John Liu, the legendary Northern Kick expert is sent to investigate an antiques smuggling gang working out of Canton.

Actors : Olive Denneccio, João Fernandes, Linda Southern, Larry Hunter,
Directors : Doris Wishman,

A seemingly pleasant fellow, Arthur goes berserk and rapes any woman in front of him wearing gold earrings. One woman tells the investigating detective (who is Arthur's uncle) she was raped...

Actors : Patricia Loran, Orchidea de Santis, Paul Naschy, Renzo Marignano,
Directors : José Luis Madrid,

In this version of the famous story of the London serial killer, Jack not only likes to kill prostitutes but he is a cannibal as well.

Actors : Floy Dean, Teresa Graves, Fred Williamson, Rosemary Forsyth,
Directors : Jack Arnold,

Private detective investigated a series of murders connected with a drug ring in Venice, California.

Actors : Kayo Matsuo, Atsuo Nakamura, Akira Nakao, Yukiko Kobayashi,
Directors : Michio Yamamoto,

Keiko and her friend are trying to find her missing brother after he disappeared visiting his girlfriend Yuko.

Actors : Massimo De Cecco, Yanti Somer, John Richardson, Walter Maestosi,
Directors : Alfonso Brescia,

A spaceship investigates an out-of-control planet and discovers a computer that controls an underground civilization.

Actors : Sara García, Manolo Fábregas, Lucha Villa, Héctor Suárez,
Directors : Luis Alcoriza,

A mechanic takes his family to a car race and a series of events occur which brings problems, betrayals, violence and the unexpected death of an elderly person.

Actors : Marie Déa, Jean Yanne, Renato Salvatori, Alain Delon,
Directors : Alain Jessua,

After years of poverty, Carrier, a repairman, inherits a large sum of money upon his brother's death in an accident. Now rich, he decides it is time to make his mark and be known at any cost. Becoming more and more mentally unstable, he begins to threaten police and the government signing his tracts, "Armaguedon". A detective from Interpol heads the investigation and prepares a trap at an ...

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 : John Wood, Dudley Sutton, Sammy Davis Jr., Peter Lawford,
Directors : Jerry Lewis,

Two night club owners find themselves in trouble with the law. One of them goes to his English Lord brother for help, and the Lord is later murdered. He swaps places with his dead brother to solve the murder.

Actors : Mi-hye Kwon, Jeong-cheol Kim, Hwa-shi Lee, Yun-seok Choi,
Directors : Ki-young Kim,

An investor planning on developing a tourist resort begins an investigation into the legends of the mysterious Io Island in the hope of exploiting its unspoiled beauty.

Actors : Ling Chia, Kuan Tai Chen, Lin Chiao, Sing Chen,
Directors : Hsueh Li Pao,

A kung-fu fighting detective investigating the murder of the emperor's wife uncovers a high-ranking conspiracy.

Actors : Peter De Anda, Raymond St. Jacques, Percy Rodrigues, Godfrey Cambridge,
Directors : Mark Warren,

Sequel to Cotton comes to Harlem. Another bad influence is hitting Harlem and Gravedigger and Coffin Ed are the two cops who will stop it. Charleston Blue was a prohibition era black ...

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 ...