Excellent

Here's a refreshing adaptation of a book*. I've watched this 3 times in 2 days and love it more each time.

First, the adaptation is one of a kind. The book takes place in Paris, while the movie is set in Berlin; there are other differences, mainly HOW the story is told; however the main idea is there: Martin Harris, after waking up from a coma, discovers that another man has taken not only his wife but his identity. He has only his memory left. How will Martin Harris prove it and is he the real Martin Harris...
Second, the way Jaume Collet-Serra directed the film, kept me wondering where it was going (and I kept hoping that it was not predictable like other movies had been before this one), it certainly was an unpredictable ending and not boring at all. Quite an original adaptation to the screen.
Third, the actors. All excellent. (Except January Jones. She is just not credible.) Liam Neeson as Martin Harris is simply fabulous; Aidan Quinn as "the other" Martin Harris is stunning! Bruno Ganz has a small role, but what a performance!! and Sebastian Koch, well he's just amazing. Diane Kruger, also excellent with her accent, plays a taxi driver.
Lastly, one of the best car chases in film history is in this film.
All in all, despite the horrible performance by Jones, it's one of the best suspense/thriller I've seen.

I can't say any more without spoiling it, so what are you waiting for? Rent it, buy it, I don't care which, but good heavens, go watch it! You won't regret it.

*For those interested, the book is "Hors de moi" by Didier van Cauwelaert.