The Divide (2011) is a brutal post-apocalyptic survival horror-thriller about a group of tenants who seal themselves in a basement shelter after a nuclear attack. As supplies dwindle and paranoia grows, the survivors descend into violence, madness, and exploitation. From Xavier Gens (Frontier(s)), it’s an infamous entry in extreme survival cinema.

Från IMDB:
Survivors of a nuclear attack are grouped together for days in the basement of their apartment building, where fear and dwindling supplies wear away at their dynamic.