A mystery thriller that explores the idea of identity

Rating: 8/10 (27 December 2013)

This is a thriller and a very good one at that so I don't want to give away too much of this movie in this review (particularly since I do not like putting 'spoiler alert' in any of my reviews).
Anyway, Dr Martin Harris awakes in a hospital after a particularly nasty car accident, and realises that his wife is probably worried that she hasn't heard from him for a few days. So, he discharges himself from the hospital and rushes over to the hotel to discover there is somebody else there who claims to be Dr Harris, and his wife has no idea who he is. Thus the adventure begins.
As you wander through this movie your mind is constantly trying to come to a rational explanation as to what is going on. I thought that it must involve clones or something, but that just did not sit right since it was clear that this was not a science-fiction movie, despite the movie revolving around a bio-genetics conference that Dr Harris is attending.
The main theme behind this movie is identity. Who are we truly, and what is it that defines who we are. It is certainly not our name, since others can have the same name as ourselves, but be vastly different. Is it a case of identity theft? Unlikely because Dr Harris' wife does not recognise him, despite him remembering their honeymoon. Is it our friends, or our occupation, that defines us? Not entirely, since Dr Harris' wife does not recognise him, and the other Dr Harris appears to be as much of an expert in the field as the protagonist does.
As I said, I do not want to give away too much about this movie because it is a really good thriller, and in the end everything is explained in a rational and logical manner. Therefore you are unlikely (though it is still possible) to leave the cinema thinking 'this was rubbish'.