This was a very good movie about a son who suspects that his mother may have had a hand in the death of his father ten years earlier. It's unclear if he is driven by his conscience or revenge (I think even the character doesn't know why), but he decides to go to the police to report his suspicion.
The film is told with the effective use of flashbacks as the young man relays the details of his father's death to the stoic police chief. There are numerous twists and turns in the plot leaving the final outcome difficult to guess. It moves along slowly, unraveling little pieces of the puzzle, so it will require a little patience. The film poses interesting moral questions without heavy-handedly coming down on any side.
The performances are worthy all around, but especially Gaowa Siqin, as the mother. Definitely recommended, especially if you are a fan of Chinese films. It doesn't have the pizazz and magnificence of some of Zhang Yimou's work, but it's engaging little story makes it well worth checking out.