Excellent little psychological thriller.
Was super entertained by this.
My only problem with it are 2 lines being said at around 10 minutes in the movie that pretty much ruins the ending if you are attentive to what's being said. You don't need to be a genius, it's pretty obvious. If I was in the editor's shoes, I would have cut this moment completely to really keep the mystery interesting. Little bit ruined the ending for me.
Still, I recommend it. Worth your time. Good acting, good Thriller (hee hee)