[6] It stars Claude Perron, Jean-Pierre Martins, Eriq Ebouaney and Aurélien Recoing.

[7][8][9][10][11] A group of French policemen embark on a mission of vengeance after a colleague is killed by a notorious drug dealer.

He is holed up in a condemned high-rise in the heart of a derelict and corrupt Paris neighborhood (ZUP[12]).

They storm the social housing complex with the intent of taking him down,[13] but the operation is a failure and the team is captured.

Cops and criminals must now forge an uneasy alliance to survive the undead onslaught.