Mostly great

Rating: 7/10 (15 February 2017)

I gave this movie a 7 out of 10. I probably would have given it a 9 before I saw the ending. For the most part, it's a superb psychological thriller. The suspense is great. The lead actors and even the supporting actors (such as the other 2 teenage girls) are brilliant.
That ending though...
The movie spends a lot of time as a thriller. Toward the end we get some sort of supernatural elements creeping in. A little jarring but it was done well enough.
Then at the end though there's a brief moment when the film's title appears on the screen before another 2 or 3 minutes of story are added before the credits. I would have been quite happy to stop watching it before those last couple of minutes.
I'm think I know what the director was trying for with that ending but it was poorly executed and completely unnecessary. If you haven't seen it, my advice is to stop watching it when that title comes up and skip those last couple of minutes. It tainted what was otherwise a superb film.