Best Investigation movies of 1970s

Actors : Eizô Kitamura, Makoto Fujita, Junko Inagawa, Yoshio Harada,
Directors : Seijun Suzuki,

A police detective tries to investigate the mystery of a victim who was shot in the head, but no bullet was found.

Actors : Hui Ouyang, Bruce Le, Fang-Hsia Chang, Fei Lung,
Directors : Kuan-Chang Li,

A fan of Bruce Lee investigates the martial arts master's death.

Actors : Oh-jang Mun, Geun-hyeong Park, Chi-woo Lee, Yeon-jeong Woo,
Directors : Won-se Lee,

Kim Jong-won, a communist operative in South Korea, turns himself in and assists the Special Investigation Unit to bring the other members of his organization to trial.

Actors : Dai Ling, Ti Ai, Yen Ho, Hsi Tang,
Directors : Chi Lu,

Three females from a private detective agency are hired to find out what happened to a man who went missing while scuba diving.

Actors : Mecha Ortiz, John Gavin, Leonor Manso, Yvonne De Carlo,
Directors : Ricardo Wullicher,

Audrey investigates a murder that occured 23 years ago in a dark mansion. She searches for the dead body, the killer, and the truth.

Actors : Meredith MacRae, Clayton Wilcox, Greg Mullavey, Carolyn Ames,
Directors : Paul Leder,

A Vietnam veteran goes on a crime spree and starts torturing and killing men he served in the army with.

Actors : Monica Gayle, L.G. Allard, Nona Carver, Linda Colpin,
Directors : Edward D. Wood Jr.,

A couple hire a detective to locate their missing daughter. He finds her in a "house of ill-repute."

Actors : Reiko Ôhara, Mitsuko Kusabue, Kôji Ishizaka, Yôko Tsukasa,
Directors : Kon Ichikawa,

A scruffy detective investigates the murders of three sisters on a small Japanese island in 1946.

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 : Narendra Nath, Aruna Irani, Jyothi Lakshmi, Anil Dhawan,
Directors : K.S.R. Doss,

Anu joins the Criminal Investigations Division of the Indian Police when her father is killed, and her mother is brutally assaulted by a woman named Sonu. She meets a wealthy male named ...

Actors : Tao-Liang Tan, Lingfeng Shangguan, Shen-Lin Chen, Yuan Chuan,
Directors : Hung Tao,

After the famous General Stone is stricken down in battle under mysterious circumstances, his talented son Flash Legs (Tan Tao Liang) vows to investigate the strange death and get to the truth of the matter.

Actors : Anthony Steel, Graham Stark, Robin Askwith, Fiona Richmond,
Directors : James Kenelm Clarke,

A soldier returning from World War II gets mixed up in a series of murders and mistaken identies regarding a cigarette lighter than affects all electric power.

Actors : Janet Agren, Chris Avram, Ettore Manni, Maurizio Merli,
Directors : Stelvio Massi,

Comissioneer Mariani leads investigates a group of kidnappers.

Actors : Chiang Chao, Chun Chao, Jackie Chen, Fu-fen Chao,
Directors : Hung-Chang Wang,

Two agents investigate missing ammunition from the Chinese military. Not a single shot is fired and it is all kung fu fighting start to finish.

Actors : Paul Meurisse, Bruno Cremer, Mimsy Farmer, Michel Bouquet,
Directors : Michel Wyn,

A young American tourist is found dead in the south of France. The possible culprits are numerous so the police investigates to discover what she's done during the five weeks she spent in France before being murdered.

Actors : Ji-hye Kim, Jang Lee Hwang, Jang-kang Heo, Bobby Kim,
Directors : Young Nam Ko,

An Interpol agent is asked to stop an assassignation attempt and to investigate the strange circumstances of a suspicious inheritance.

Actors : Corinne Carol, Julie Margo, Patrice Valota, Jacques Bouanich,
Directors : Philippe Monnier,

Corentin and Brichot investigate drug trafficking in Fort-de-France, Martinique.

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.

Actors : Prem Nath, Rekha, Shashi Kapoor, Bindu,
Directors : B.R. Ishara,

Concerned over the rising death of low-caste people in a remote town in India, the Central Bureau of Investigation assigns this task to Inspector Ravi Kapoor and instructs him to go ...

Actors : Moran Li, Lan Gu, Ke Poo, Qi Da,
Directors : Xinshui Zhao,

A spy is shot dead at the border of North China. Investigator believe that there must be another spy crossing the border elsewhere at the same time.