Best Investigation movies of 1973

Actors : Junkô Tôda, Yumiko Nogawa, Tomoko Mayama, Tomisaburô Wakayama,
Directors : Shigehiro Ozawa,

A shogunate secret agent is sent to investigate a secret deal with a Dutch warship involving repeating rifles to be used in an uprising against the Shogun, but finds there's more going on than previously suspected.

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 : Betty Arvaniti, Zoras Tsapelis, Nikos Kourkoulos, Hristos Daktylidis,
Directors : Petros Lykas,

A neurosurgeon makes an operation on a patient, but after the operation disappears. Forced to investigate the same case and discovers that the patient is a victim of interests of ...

Actors : Bomba Tzur, Dubi Gal, Joseph Shiloach, Ilan Dar,

Bumbling private detective Schwartz and his equally inept part Simcha are hired by a man to find out if the man's wife is cheating on him with the family doctor. The blundering duo run ...

Actors : Dae-yeob Lee, In-suk Ahn, Mu-ryong Choi, Hyeok Jang,
Directors : Tae-ho Seol,

Nan-hie is slowly coerced into a life of crime by her boyfriend, Park. She is trained in assassination techniques and sent to assassinate the head of the Special Investigation Unit. However...

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 : Shivaji Ganesan, Nagesh, Y.G. Mahendran, Chendamarai,
Directors : Vietnam Veetu Sundaram,

Emotional drama of two lawyers - uncle and nephew - Shivaji Ganesan in dual role. Uncle obsessed with legalities alone whereas the nephew intent on looking at the moralities too.

Actors : Vera Gimenez, Rossana Ghessa, Edson França, Jece Valadão,
Directors : Jece Valadão,

A small town in Brazil is the background for this thriller about a murder, disclosing corruption among the leaders of the region.

Actors : Harvey Lembeck, Cesare Danova, Sinéad Cusack, Cyril Cusack,
Directors : William Kronick,

American detective goes to Ireland, for a visit to his late wife's relatives and helps the local police in a case of murder and money forgery.

Actors : Oh-jang Mun, Jeong-hie Yun, In-suk Ahn, Mu-ryong Choi,
Directors : Tae-ho Seol,

The Special Investigation Unit enlists the reluctant aid of Kim Su-san, the mistress of Lim Chang-shik who is the head of the illegal communist party is South Korea. First she is convinced ...

Actors : Dev Anand, Hema Malini, Jeevan, Ajit,
Directors : Raj Khosla,

The Government of India has devised plans for a new kind of super aircraft. A gangster, Diwan, manages to procure this plan from corrupt military officials, and hides it in his safe along ...