Best Investigation movies of 1984

Actors : Martin Balsam, P.J. Soles, Grigor Taylor, Kit Taylor,
Directors : Colin Eggleston,

A woman living in Dallas discovers that her husband, from New Zealand, is actually a crazed serial killer who murders prostitutes. She helps the authorities arrest him, and he is sent to a ...

Actors : Fernando Poe Jr., Coney Reyes, Fred Montilla, Rey Langit,
Directors : Fernando Poe Jr.,

Portrayed the character of the hired assassin who plots the slaying of the lead character, played by FPJ.

Actors : Wolfgang Kieling, Maximilian Schell, Robert Aldini, Lena Stolze,
Directors : Norbert Kückelmann,

After assaulting a minister, a young defendant claims to have acted entirely by himself. His lawyer doesn't believe him and starts investigations of his own.

Actors : António Assunção, Helena Isabel, Rui Mendes, Agostinho Alves,
Directors : António de Macedo,

Irene, a agent of an insurance company, is in charge of investigating the disappearance of an old librarian, in a provincial town. In the course of the investigation, she knows Ricardo, a ...

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.