Best Investigation movies of 1972

Actors : Rossella Bergamonti, Stelio Candelli, Patrizia Viotti, Veronika Korosec,
Directors : Leopoldo Savona,

A man finds his wife brutally murdered. He has no alibi so is instructed by his lawyer to go into hiding in an abandoned hotel. Strange occurrences start happening immediately.

Actors : Bo Hopkins, Beth Brickell, G.D. Spradlin, Steve Sandor,
Directors : G.D. Spradlin,

Two bikers stop on the road to help a family with car troubles. An argument ensues leaving the father dead, and the others are held hostage in a barn. As police investigate, the fate of the hostages is uncertain.

Actors : Adrienne Posta, Dandy Nichols, Warren Mitchell, Paul Angelis,
Directors : Bob Kellett,

Based on the BBC television series, and a sequel to 'Till Death Us Do Part (1968)', it tells of the family relationship between Alf Garnett, his wife, daughter and son-in-law, all living in a council flat.

Actors : Franco Fabrizi, Marilù Tolo, Frederick Stafford, Reinhard Kolldehoff,
Directors : Camillo Bazzoni,

A journalist is attacked and killed. Inspector Luca Micheli investigates the crime, and finds a suspect named Delogo but, though the suspect himself confesses that he murdered Galiardin, ...

Actors : Robert Woods, Carlo Gaddi, Frank Braña, Nieves Navarro,
Directors : Mario Bianchi,

Ginsburg, undercover as Jonathan Pinkerton, an employee of Lloyds of London, is investigating a bank robbery where one of the three thieves has killed the other two to take possession of all the money.

Actors : Yung-Kyoon Sin, John Ireland, Victor Buono, Anita Ekberg,
Directors : David Lowell Rich,

Three adventurers--at times competing with each other, at other times allied with each other--search South Korea for a magical sword that is supposed to imbue its owner with wealth and power.

Actors : Andrés Mejuto, Carlos Romero Marchent, Orchidea de Santis, Peter Lee Lawrence,
Directors : Rafael Romero Marchent,

After the killing of his father, Danny Lom finds work in a village, and with the help of the sheriff's daughter, investigates the crime.