Best Investigation movies of 1960s

Actors : Uschi Glas, Grit Boettcher, Konrad Georg, Joachim Fuchsberger,
Directors : Alfred Vohrer,

Police try to track down a hooded serial killer who murders his victims with a combination of acid and poison gas.

Actors : Nick Adams, Richard Chamberlain, Claude Rains, Joan Blackman,
Directors : Boris Sagal,

A murder case that can't be won is assigned to a young defense attorney. He asks his old ailing friend, a legend among attorneys, for help on the case as his consultant.

Actors : Sammy Davis Jr., Michael Bates, Ilona Rodgers, Peter Lawford,
Directors : Richard Donner,

After discovering the body of a murdered female agent in their trendy Soho, London nightclub, groovy owners Charles Salt and Christopher Pepper partake in a fumbling investigation and ...

Actors : Jan Hendriks, Günter Pfitzmann, Barbara Rütting, Heinz Drache,
Directors : Alfred Vohrer,

Scotland Yard investigates a series of murders where the victims have died by snake venom poisoning.

Actors : Jean-Louis Trintignant, Carroll Baker, Erika Blanc, Horst Frank,
Directors : Umberto Lenzi,

Jean, a French businessman's life is forever changed when he overhears a brutal attack. Upon further investigation, he is introduced to the beautiful Nicole, a naive woman at the mercy of ...

Actors : Audie Murphy, Ben Cooper, Colleen Miller, DeForest Kelley,
Directors : Frank McDonald,

In 1875 a murderous outlaw gang breaks criminals from jail, uses them to help in crimes, and then kills them for the reward, when it goes high enough.

Actors : Victor Buono, Diane Sayer, David McLean, Davey Davison,
Directors : Burt Topper,

An overweight lab technician with low self esteem, brought on by his dominant mother, becomes a serial killer of female nurses.

Actors : Lana Turner, Dan O'Herlihy, Richard Egan, George Chakiris,
Directors : Tito Davison,

A former actress clashes with her wealthy and spoiled stepdaughter over their inheritance after the death of their protector.

Actors : Berwick Kaler, Annabella Wood, Jane Hilary, John Miranda,
Directors : Andy Milligan,

A murderous barber and his equally psychopathic friend, a baker, hatch a plan whereby the barber murders people and the baker makes them into pies to be sold in his shop.

Actors : Sabine Sesselmann, Penelope Horner, William Lucas, Joachim Fuchsberger,
Directors : Ákos Ráthonyi,

A Chinese detective breaks up a drug smuggling ring and tries to find the "Daffodil Killer." The drug smugglers had devised the ingenious method of smuggling heroin from Hong Kong in the stems of daffodils.

Actors : Hugh Burden, Bernard Lee, Haya Harareet, Stewart Granger,
Directors : Basil Dearden,

A wealthy London-based shipping magnate is blackmailed by an evil dentist which threatens to reveal an old case of fraud, while the dentist himself is threaten by a mysterious masked man.

Actors : Richard Harrison, Claudio Camaso, Paolo Gozlino, Werner Pochath,
Directors : Antonio Margheriti,

A man tracks down the five outlaws who murdered his brother, all the while being shadowed by a mysterious Pinkerton detective.

Actors : Audie Murphy, Vic Morrow, John Saxon, Zohra Lampert,
Directors : Herbert Coleman,

Banner Cole is a tough sheriff's deputy who forms a small posse to go after 4 death cell escapees who killed the sheriff , along with 3 other men, and kidnapped a woman with rape in mind.

Actors : Alexander Knox, John Standing, Patrick Wymark, Margaret Johnston,
Directors : Freddie Francis,

Four men who were involved in the investigation of a German millionaire at the end of the Second World War are found murdered with tiny dolls left next to their corpses.

Actors : Lelia Goldoni, Julian Glover, Jenny Till, Christopher Lee,
Directors : Samuel Gallu,

The Theatre of Death in Paris specialises in horror presentations. A police surgeon finds himself becoming involved in the place through his attraction to one of the performers. When ...

Actors : Marianne Koch, Walter Rilla, Albert Lieven, Richard Todd,
Directors : Lawrence Huntington,

A British colonial policeman in Africa investigates a murder in a hospital up river.

Actors : James Booth, Shirley Jones, Stella Stevens, Honor Blackman,
Directors : Andrew L. Stone,

Arthur Tate rose to his fame, wealth and respectability quickly from humble beginnings as a naive and somewhat bumbling police constable in a small English town. He attributes this rise to ...

Actors : Peggy Neal, Shin'ichi Chiba, Franz Gruber, Steve Queens,
Directors : Hajime Satô,

While covering a test of guided torpedoes, two reporters believe they saw what appeared to be a strange-looking swimming creature. They investigate the matter further and discover that ...

Actors : Angelique Pettyjohn, Vivian Del Rio, Michael Findlay, Suzanne Marre,
Directors : Michael Findlay,

A distraught weapons dealer is involved in an automobile accident after catching his stripper wife in bed with another man. Upon recovering, he goes on a killing spree, bumping off exotic ...

Actors : Evelyn Hendricks, Gaye Yellen, Herbert Nelson, Gerald McRaney,
Directors : Joy N. Houck Jr.,

Wesley goes out on a killing spree while experiencing the nightmares of his brother, who was murdered 13 years ago.