TL:DR Captivating from start to finish. Run time a bit long but totally worth it.
This is more or less a typical post-apocalyptic scenario where some event (in this case nuclear war) causes the collapse of society and tribes, gangs etc. start to form to survive killing, stealing, pillaging. Of course, there are those that also kidnap women and rape them. All this features prominently in the movie. In this film the protagonist is a loner who has managed to do quite well for himself living in relative safety in rural England and is able to horde away a lot of food and supplies. His life is suddenly turned upside down when he violates his own self-imposed rules to help a starving woman, then it all starts to come unraveled. Next we have a lot of brutality, medieval style fights, blood, rape rooms, heads getting bashed in, stabbings armed cannibalistic gangs... a lot of this kind of thing until the conflicts are all resolved. What I liked most about it that it never ever got too bogged down like a lot of movies do. The pacing was good. Just enough backstory. It was sufficiently nerve-wracking, sufficiently violent but not oo much and I liked the main characters. Mostly I like that it was incredibly unique take on post-apocalyptic world but form a very English point of view.