Best Investigation movies of 1988

Actors : Shigeru Sasaki, Masahiko Itô, Maya Shiraki, Yôko Fujita,
Directors : Hisayasu Satô,

A hospital nurse treating a patient for amnesia discovers that he is the serial killer who has been roaming the city armed with a metal baseball bat.

Actors : Judy Davis, Julia Blake, John Bach, Alex Menglet,
Directors : Ben Lewin,

A young woman investigates the death of her mother, who drowned when her daughter was still a baby. The question is: was it murder, suicide or merely an accident?

Actors : Naichang Ren, Haitao Wen, Guohua Zhao, Xiaoqin Mai,
Directors : Abuer,

An international film crew is at work on location at a tomb when ancient golden statues are replaced by fakes. A crew member investigates.