This is a mystery on more than one level. It's also an exercise in discernment. From a cinematic standpoint, the look is very refined, with frame after frame to die for. The characters are carefully drawn, more consistent than one is accustomed to. They aren't asked to drop character in order to deliver a standard plot resolution. The strength of this film is mind-boggling, and it deserves careful attention, as well as more than one viewing.