A great storyline, very suspenseful but no violence. This movie has a lot of class, noble values like integrity, honor, friendship, loyalty... I love Bill Nighy. Not used to seeing him do a really serious role. I think of him in Love Actually, The Boat That Rocked and The Best Exotic Marigold Hotel. I really like him in this he inspires respect, the deep down real stuff. A quiet hero.
Oh! the British and their ability to spin a wonderful mystery/suspense/thriller... Watch it, you won't be sorry.