Highly recommend going in blind for this one. ***Triangle*** is definitely smarter than your average psychological mystery thriller. As I started watching I found it incredibly predictable, it's like your always two steps ahead of the movie the whole way through but... the final 15-20 mins were a total surprise I didn't see coming. That surprise elevates the movie as a whole and makes it pretty clever. Quite the guilt trip and I love the metaphors associated with it. Part of it is also left for interpretation which I love. A rewatch would do it good. Decent acting, ugly CGI in some parts but there wasn't that much, I like the setting and great job with the editing.

**SPOILERS:**
[spoiler]Why was her memory erased at the end?
1. Memory loss is simply the cost of getting a chance to go back to change the outcome. Or a side effect if you will.
OR
2. She died in the car crash and is somehow brought back to be punished by reliving what she did to her son. Some kind of purgatory.[/spoiler]

[spoiler]The biggest indicator for me is the taxi driver, he's crearly aware of the situation and how it all works. He's probably the guide/guard/whatever of this purgatory.[/spoiler]

[spoiler]But what bugs me is the fact that she wants to relive the whole thing again and that she's given the choice by the taxi driver. Why would she willingly go back to purgatory? Purgatory means you're dead, it's already too late to change things. The only two reason I see why she would want to do it again is if: 1) She thinks there's a way to change the outcome. Then it's not purgatory but she's still alive and trying to change things or 2) she wants to relive purgatory because she's feeling so guilty she feels she still deserves the punishment.[/spoiler]