Dawning of the Dead « Movie from 2017

While a virus that causes the dead to reanimate brings the world to its knees, the scientist responsible entrusts his cataclysmic findings to Katya Nevin, an ex-war correspondent and now local news anchor.

While she and the rest of her team witness the collapse of society via video feeds from around the globe, a deadly special agent climbs the building floor by floor, his only goal to ensure her silence.