Best Investigation movies of 1970s

Actors : Alberto de Mendoza, Claude Jade, Frederick Stafford, Femi Benussi,
Directors : Germán Lorente,

Sandro, a detective, finds his wife strangled. His girl-friend Tiffany, who works as photographer, makes a "Blow up" from a photo, what Sandro finds beside the victim. Sandro and Tiffany ...

Actors : James Mason, Curd Jürgens, Jean Seberg, Stephen Boyd,
Directors : Romain Gary,

Interpol investigates the freelance killings of drug and porn peddlers.

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 : 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 : Robert Webber, Tomas Milian, Massimo Vanni, Lilli Carati,
Directors : Bruno Corbucci,

Tomas Milian as the unconventional undercover cop with a pet mouse named 'Serpico'. Still difficult for an investigation commissioner Nico Giraldi, this time struggling with a gang who commits theft in luxury apartments in Rome.

Actors : Joe Turkel, Tom Drake, Sean Kenney, Steve Oliver,
Directors : John Lawrence,

A serial killer murders a businessman's wife, then blackmails the man into procuring young girls for him to murder. The businessman hires a gang of renegade motor-cyclists to kidnap girls for him.

Actors : Midori Fujita, Shin Kishida, Chôei Takahashi, Sanae Emi,
Directors : Michio Yamamoto,

A doctor investigates the murders of several women at a lakeside resort. His investigation leads him to believe that a vampire is responsible for the murders. He sets out to track the vampire down.

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 : Robert Ginnaven, Gary Brockette, Rod Serling, John Leslie,
Directors : Harry Thomason,

Three eerie tales based on actual events are enacted in this film. First, three college students play a prank on a geeky classmate, who is accidentally shot and killed. His vengeful mother ...

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 : Preston Pierce, Georgina Spelvin, Susie Ewing, Rosalind Miles,
Directors : Al Adamson,

A team of girls go on a killing spree across the country.

Actors : James Westmoreland, Anitra Ford, Alan Landers, Anne Randall,
Directors : Andy Sidaris,

The sleazy and dangerous adventures of a gorgeous female private detective.

Actors : Linda Marlowe, Gary Hope, Sean Hewitt, Richard Monette,
Directors : Lindsay Shonteff,

A female private detective, Harriet Zapper, is hired by a rich old man to find his missing children, and becomes involved in counterfeiting and murder

Actors : Shin'ichi Chiba, Masaru Shiga, Janet Hatta, Eiko Matsuda,
Directors : Kinji Fukasaku,

A tough-as-nails cop from Okinawa investigates a savage murder in Tokyo's nightlife district. Originally dismissed as a bumpkin, he soon proves more savvy than the local police.

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 : Anne Jackson, Eli Wallach, George Kennedy, Steve Ihnat,
Directors : Richard A. Colla,

A dying man frames himself for the kidnapping and murder of an industrialist so his wife and daughter can benefit from the reward money. However, his plan goes awry when he is cured!

Actors : Joe Don Baker, Tyne Daly, Robert Loggia, Richard Jaeckel,
Directors : Earl Bellamy,

After a wave of unsolved car thefts, an insurance company calls in private investigator Pete Nobeck to solve the case. While the chief of police isn't thrilled about having an outsider come...

Actors : Jennifer O'Neill, Robert Duvall, Patrick Magee, Donald Sutherland,
Directors : Tom Gries,

An insurance investigator romances a wealthy young beauty when he suspects she may be involved in fencing stolen jewels.

Actors : Vinod Mehra, Sunil Dutt, Shatrughan Sinha, Sanjeev Kumar,
Directors : Rajkumar Kohli,

A newly married bride disappears after her marriage.

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.