Last Rites (2006)

In Los Angeles, a meteor bringing some sort of disease falls on a group of homeless and turns them into flesh eater zombies. Meanwhile, two rival gangs are dealing drugs with an intermediary in an old warehouse without knowing that there is a stake out of the LAPD of the whole operation. When the policemen are ready to arrest the criminals, they are attacked by the hunger zombies in the beginning of a nightmarish night.