The cast is excellent. Good acting by good actors creating believable characters. The story is solid - although not totally convincing in the motivation for the dennoument. The film is well made - direction, camerawork, editing, mise-en-scene all faultless.

Doesn't really work as either a thriller - not a lot of suspense - or a psycho-drama. But entertaining as a mystery as the secrets are teased and then revealled.