The basic plot, as described, doesn't do justice to the film itself, which is almost a classically constructed noir film of vengeance, and very tense one at that. First, the two leads. Colin Farrell has been derided as just a pretty mug, but he's done some fine acting (much of it in bad films, like the remake of "Fright Night"), and here is convincing and compelling as a man driven by revenge. He unexpectedly meets his counterpart in a woman, who also wants revenge for wrongs done to her.
Which brings me to Naomi Rapace. I've only seen her in the pretty average "Sherlock Holmes," which gave no one a chance to shine. In this film she played a very damaged woman, which is often one of the easiest things to portray, yet she did a very powerful job of showing the character's change from harpy bent on destruction back to a woman able to empathize with the suffering of others.
Overall, a surprising and worthy film, with an ending one doesn't see coming. Well worth your time.
