Citadel

An agoraphobic father teams up with a renegade priest to save his daughter from the clutches of a gang of twisted feral children who committed an act of violence against his family years earlier.

Citadel is a 2012 Irish psychological horror film written and directed by Ciaran Foy (Sinister 2 [2015]), 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".