Best Investigation movies of 1984

Actors : Eddy Mitchell, Gérard Lanvin, Françoise Arnoul, Raymond Pellegrin,
Directors : Jean-Claude Missiaen,

With the help of journalist Diane Castelain, Parisian police inspectors Leo Gorce and Gu Arenas are trying to solve the murder of a member of the French Parliament, but some dangerous powerful people try to make sure that doesn't happen.

Actors : Richard Ng, Kara Hui, John Sham, Deannie Yip,
Directors : Philip Chan,

Hong Kong detectives Chau and Beethoven return in this sequel to "Pom Pom." This time out, they join forces with their boss, Inspector Chan, to find the notorious Flying Spider, who is ...

Actors : Pamela Collyer, Walter Massey, Nanette Workman, Jack Langedijk,
Directors : Claudio Castravelli,

A girl starts her own investigation after the police fail to catch a local serial killer.

Actors : Raymond Mayo, Susanne Reed, Jack Kehoe, Allan Kolman,
Directors : Patrick Roth,

A former insurance man and a thief get together and plan to rob a house. However, things don't go as planned, and they wind up getting involved in rape and murder.

Actors : Antonio Mayans, Ricardo Palacios, Carmen Carrión, Lina Romay,
Directors : Jesús Franco,

Private detective Alfredo Pereira is hired by eccentric couple Raden and Eve to find their missing sister, Adriana. Despite his limitations, Pereira soon finds the woman, but foreplay between characters complicates things.