Citadel

Citadel is a 2012 Irish psychological horror film written and directed by Ciarán Foy, in his feature film debut. It was filmed in Glasgow, Scotland. The film stars Aneurin Barnard as Tommy, a widower who must raise his baby alone after an attack by a gang leaves his wife dead and him suffering from agoraphobia. It is an example of "hoodie horror".

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.