This is a remake of a Spanish horror movie called Rec. that came out last year over seas.
Of course, we must have a US version. But if this as good or better than the original, you'll be in for a treat.
The movie tells the story about a news reporter and a cameraman, a group of firefighters and the the local residents of an apartment building, locked in the apartment building by officials...when a deadly virus is discovered infecting the population of the building, turning the infected into the unthinkable.