Best Investigation movies of 1970s

Actors : Broderick Crawford, George Kennedy, Mariko Okada, Yûsaku Matsuda,
Directors : Jun'ya Satô,

When an American is murdered in a Japanese inn, Tokyo police detective Munesue follows the trail of the killer to New York. There he is joined by a New York City detective named Shuftan and together they sort out the crime.

Actors : Akiko Nishina, Keiko Kishi, Kôji Kita, Kôji Ishizaka,
Directors : Kon Ichikawa,

Kôsuke Kindaichi, a somewhat peculiar private detective, visits a remote town. He meets a police detective and they start to investigate an old unsolved murder. Then some murders happen. ...

Actors : Gloria Hendry, Sherry Jackson, Michael Heit, Robert Viharo,
Directors : Don Edmonds,

A bounty hunter in Los Angeles sets out to track down and stop a masked serial killer who murders women by using kung-fu moves.

Actors : Ferdinando Murolo, Luc Merenda, Enzo Cannavale, Adolfo Lastretti,
Directors : Michele Massimo Tarantini,

Police Commissioner Dario Mauri investigates the activities of a drug ring led by Don Domenico Laurenzi.

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 : Renato Aragão, Dedé Santana, Mussum, Vera Setta,
Directors : J.B. Tanko,

Woman hires three clumsy adventurers to rescue her missing archaeologist father, who was trying to find the legendary King Solomon's mines.

Actors : Yuriy Demich, Aleksandr Zbruev, Irina Ponarovskaya, Bruno Frejndlikh,
Directors : Gerbert Rappaport,

Menya eto ne kasaetsya (aka... It's not my business) is set in Soviet Russia. The manager of a garment industry dies in a car accident. Investigation reveals that the accident was not a ...

Actors : John Wood, Tammy Grimes, Farrah Fawcett, Jeff Bridges,
Directors : Lamont Johnson,

A woman's husband is murdered and she and her lover must find the killer or stand accused of doing it themselves.

Actors : Alan Lake, Mary Millington, Glynn Edwards, Gavin Campbell,
Directors : Willy Roe,

Two detectives are drawn into the world of porn, while investigating murders of centrefolds...

Actors : Franco Ressel, Joan Collins, Maurizio Merli, Werner Pochath,
Directors : Stelvio Massi,

An Italian private investigator tries to get to the bottom of a suspicious kidnapping case with the help of an exotic dancer

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 : Yi Tao Chang, Lau Chan, 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 : 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 : 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 : John Karlen, Susan Sullivan, Martin Speer, James Luisi,
Directors : Jeremy Hoenack,

A detective tracks a serial killer through San Francisco.

Actors : Ligia Diniz, Paulo Gracindo, Paulo Guarnieri, Cristina Aché,
Directors : Bruno Barreto,

Rio de Janeiro police investigator Galvão is pursuing two trails, one professional and one personal. While he tracts a serial killer of taxi-drivers, he also seeks his estranged daughter, ...

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 : Antonella Antinori, Anna Maria Rizzoli, Mario Cutini, Ray Lovelock,
Directors : Mario Gariazzo,

A reporter and his girlfriend investigate deaths surrounding a hotel where several prominent people go to have sex.

Actors : John Mills, Margaret Tyzack, Simon MacCorkindale, Barbara Kellerman,
Directors : Piers Haggard,

A separate screenplay by Nigel Kneale for theaters, parallel to the 1979 Quatermass four part mini-series. The story set in the near future involves influences from outer space that are possessing people. Professor Quatermass must save his granddaughter from the clutches of a popular and sinister cult "Planet People" that "performs raptures".

Actors : Renato Pozzetto, Max von Sydow, Shelley Winters, Alberto Lionello,
Directors : Mauro Bolognini,

Black Journal (originally titled Gran Bollito) is a 1977 Italian drama film directed by Mauro Bolognini. It is based on the real life events of Leonarda Cianciulli, the Italian serial killer best known as the "Soap-Maker of Correggio".