Great Horror thriller in my books, full of suspense, violence and gore with an end that will leave you feeling sick and ill in your stomach as screams echo round the house of the main protagonists house. Michael Fassbender and James O'Connell both play their characters superbly with the latter really shining through in classic Cook fashion with mindless violence and seemingly no punishment for his crimes.
Definately worth a watch if you have LoveFilm.