Blitz (2011)

Detective Sergeant Tom Brant who is dispatched to take down a serial killer hell bent on killing off the police force one by one. "The Blitz" manages to slip through the grasp of Tom every time, and with the precious lives of his colleagues diminishing one by one, Tom is led to the question: if we can't protect our own, then what good are we?

Watching action films once in a while feels good and I was entertained with this movie! :) A douchbag guy who serially kills cops was so hard to catch but in the end Brant made him pay for the crimes he did.

Source: http://www.imdb.com/title/tt1297919/