Best Investigation movies of 1972

Actors : Barry Foster, Jon Finch, Barbara Leigh-Hunt, Anna Massey,
Directors : Alfred Hitchcock,

A serial murderer is strangling women with a necktie. The London police have a suspect, but he is the wrong man.

Actors : Margot Kidder, William Finley, Charles Durning, Jennifer Salt,
Directors : Brian De Palma,

A journalist witnesses a brutal murder in a neighboring apartment, but the police do not believe that the crime took place. With the help of a private detective, she seeks out the truth.

Actors : Frank Adu, Anthony Quinn, Yaphet Kotto, Anthony Franciosa,
Directors : Barry Shear,

Two New York City cops go after amateur crooks who are trying to rip off the Mafia and start a gang war.

Actors : Lizabeth Scott, Mickey Rooney, Michael Caine, Lionel Stander,
Directors : Mike Hodges,

A seedy writer of sleazy pulp novels is recruited by a quirky, reclusive ex-actor to help him write his biography at his house in Malta.

Actors : Edwige Fenech, Ivan Rassimov, Luigi Pistilli, Anita Strindberg,
Directors : Sergio Martino,

A series of murders are committed near the estate of a degenerate author and his wife.

Actors : Patrick O'Neal, Mary Woronov, James Patterson, Astrid Heeren,
Directors : Theodore Gershuny,

A man inherits a mansion, which once was a mental home. He visits the place and begins to investigate some crimes that happened in old times, scaring the people living in the region.

Actors : George Peppard, Christine Belford, Michael Sarrazin, Cliff Potts,
Directors : Lamont Johnson,

A government investigator tries to find out the truth behind the break-in at a top secret research facility.

Actors : Hedda Lubin, Frank Kress, Amy Farrell, Henny Youngman,
Directors : Herschell Gordon Lewis,

A young reporter enlists the help of a top notch private eye to solve the murder of a female stripper at a Chicago nightclub.

Actors : Ralph Waite, William Smithers, Robert Hooks, Paul Winfield,
Directors : Ivan Dixon,

It seems that masked men are knocking over the floating crap games of Chalky and Pete. Chalky and Pete hire the cool, loose, elegant Mr. T to fix things. Then, the masked manipulators set ...

Actors : Cameron Mitchell, Rip Torn, Stella Stevens, Jim Brown,
Directors : Jack Starrett,

Slaughter, a former Green Beret, avenges the killing of loved ones by the Mob, and in so doing is coerced by the Feds into traveling to Mexico to finish off surviving mobsters.

Actors : Bill Cosby, Ta-Ronce Allen, Rosalind Cash, Robert Culp,
Directors : Robert Culp,

Bill Cosby and Robert Culp ("I Spy") are united again as private eyes in this Walter Hill-scripted "film noir." Searching for a missing girl, they find themselves involved with vicious criminals and precipitating a string of deaths.

Actors : Bryant Haliday, Jill Haworth, Mark Edwards, Jack Watson,
Directors : Jim O'Connolly,

A group of experienced archeologists are searching for an old and mystic Phoenician treasure when they are surprised by a series of mysterious murders...

Actors : Shane Briant, Yvonne Mitchell, Gillian Hills, Robert Hardy,
Directors : Peter Sykes,

A physician discovers that two children are being kept virtually imprisoned in their house by their father. He investigates, and discovers a web of sex, incest and satanic possession.

Actors : Carmen Young, Rita Calderoni, Mickey Hargitay, Raul Lovecchio,
Directors : Renato Polselli,

A respected doctor becomes the prime suspect in a series of gruesome murders.

Actors : Hal Holbrook, Harry Guardino, Katharine Ross, James Garner,
Directors : James Goldstone,

California small town police chief investigates a suspicious death involving the victim's own dog that presumably killed its owner.

Actors : Jacques Herlin, Fabio Garriba, Carla Tatò, Gian Maria Volontè,
Directors : Marco Bellocchio,

A populist right-wing tabloid newspaper tries to derail the official police investigation of a brutal murder of a young girl in order to help the fascist and right-wing candidates it supports in the upcoming elections.

Actors : Lisa Moore, Bhetty Waldron, Pam Grier, Bernie Casey,
Directors : George Armitage,

A lawyer whose brother was murdered winds up getting involved with gangsters and the world of porno movies.

Actors : Shane Briant, Katya Wyeth, James Bolam, Rita Tushingham,
Directors : Peter Collinson,

A timid, withdrawn woman meets a man she believes is finally the love of her life, unaware that he is a vicious serial killer.

Actors : Anthony Steffen, Sylva Koscina, Giovanna Lenzi, Renato De Carmine,
Directors : Sergio Pastore,

A blind pianist tries to figure out who is responsible for a string of murders using a black cat with its claws dipped in curare.

Actors : Barbara Bouchet, Nino Segurini, Farley Granger, Rosalba Neri,
Directors : Silvio Amadio,

A writer's secretary tries to find her missing friend and uncovers a murder plot.