Movie tells story of humanity and law

A young prosecutor investigates a killing that happened 20 years earlier, only to discover that the suspect is the man who seduced his mother and caused his father to die in a fury of betrayal.

In Cannot Prove, prosecutor Guo Jingyuan works to collect enough evidence to support the death penalty for the man, principally as an act of revenge.

Though evidence and witnesses suggest the suspect is the likely killer of an unidentified man whose remains are found in the wild by hikers 20 years after he was killed, Guo eventually lacks substantial evidence to prove it is a case of murder rather than manslaughter.