Best Investigation movies of 1960s

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 : Victor Francen, Jean-Louis Barrault, Bourvil, Francis Blanche,
Directors : Jean-Pierre Mocky,

Two police inspectors Triquet and Vergus launch their investigations to arrest a dangerous escaped forger named Mickey Le Bénedictin.

Actors : Floretta Zana, Andreas Barkoulis, Nikos Kourkoulos, Mairi Hronopoulou,
Directors : Dinos Dimopoulos,

A former pilot Agelos Mourouzis, has thrown the drink and gambling. Someday down as chairman of a committee to investigate the causes of an airline tragedy, in which only one girl was saved...

Actors : Dieter Eppler, Dante Posani, Barbara Bold, Ray Danton,
Directors : Jesús Franco,

An American secret agent is sent to Europe to track down a ring of counterfeiters. His investigation takes him from Rome to Albania, where he gets involved with a sexy Albanian police commissioner.

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 : David Janssen, Jacques Aubuchon, Jeanne Crain, Dina Merrill,
Directors : Joseph M. Newman,

A famous movie star's fan club secretary has been brutally murdered. She has in her office old newspaper clippings regarding a missing heiress. Did the secretary know something about the mystery of the heiress? David Janssen investigates.

Actors : Eve Bork, Ron Skideri, Michael Findlay, Linda Boyce,
Directors : Michael Findlay,

A weapons dealer who murdered his unfaithful stripper wife goes on a killing spree, bumping off exotic dancers and hookers while plotting revenge on his wife's lover.

Actors : Luciana Paluzzi, John Mills, Renate Kasché, Robert Hoffmann,
Directors : Massimo Dallamano,

When a possessive narcotics detective strongly suspects that his young beautiful wife is cheating on him, he hires a professional hitman to bump her off. All the while trying to solve a string of strange murders.

Actors : Anthony Eisley, John Lodge, Thordis Brandt, Alvy Moore,
Directors : William O. Brown,

A psychic researcher and his assistants investigate a series of murders of beautiful young women.

Actors : Jean Marais, Dany Robin, Jill Haworth, Raymond Pellegrin,
Directors : André Hunebelle,

The Marquis Rodolphe de Sombrueil accidentally runs over a working man with his carriage and helps his widow -- unjustly accused of robbery -- to find her missing daughter.

Actors : Charles McGraw, Richard Kiley, Jean Seberg, George Peppard,
Directors : George Schaefer,

When police captain Frank Matthews is accused of murdering his adulterous wife and her lover he avoids arrest and sets out to find the killer.

Actors : Red Buttons, Shirley Jones, Carolyn Jones, Gig Young,
Directors : George Sidney,

The SOS from the boys upstairs bedroom is made by a Navy Signal Lamp, which was a gift from Uncle Cy.

Actors : Khoren Abrahamyan, Sos Sargsyan, Azat Sherents, Mher Mkrtchyan,
Directors : Henrik Malyan,

Calm of the mountain village is disturbed by the investigation on stray sheep.

Actors : Lee Philips, Shepperd Strudwick, Lorraine Rogers, Jean Hale,
Directors : Richard Hilliard,

An axe murderer is loose in a small New England town.

Actors : Janine Lenon, Steve Hollister, Joanna Mills, Fleurette Carter,
Directors : Anton Holden,

In Manhattan, prostitutes are being murdered by a psycho. A detective is assigned to track him down and bring him in.

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 : Rajendra Kumar, Nana Palsikar, Nanda, Ashok Kumar,
Directors : B.R. Chopra,

A lawyer holds the eyewitness evidence to catch a killer, but the identified criminal is the lawyer's own mentor, prospective father-in-law, and also the judge who presides over the case.

Actors : Donna Stone, Janet Banzet, Uta Erickson, Michael Findlay,
Directors : Michael Findlay,

A weapons expert who murdered his unfaithful stripper wife and her lover goes on a killing spree, bumping off exotic dancers and hookers, while plotting the demise of his wife's swinging bisexual sister and her kinky boyfriend.

Actors : Daliah Lavi, Beba Loncar, Richard Johnson, James Villiers,
Directors : Ralph Thomas,

A series of unexplainable accidents befall the people and companies responsible for developing the world's first supersonic airliner (SST1). A British agent is sent to investigate and with ...

Actors : Nigel Patrick, Colin Blakely, Katherine Woodville, Margaret Whiting,
Directors : Ken Annakin,

Scotland Yard Chief Inspector Johnnoe is investigating a string of bank robberies but the robbers are determined to compromise Johnnoe and the investigation.