Denzel is the boss Denzel Washington plays Bob (or Robert, when he's reading), a mild-mannered worker in a Boston Do-It-Yourself megastore but a man with a secretive past. Needing only, it seems, about 2 hours sleep a night, Bob frequents an all-night diner where he befriends prostitute Teri played by Chloe Grace Moretz. She ends up in the hospital thanks to some pimp heavies, and Bob exacts bloody justice on the guys. Unfortunately, these are the henchmen of a huge Russian mafia operation in the US, and Bob's fight becomes a full-scale war against the leader Pushkin (Vladamir Kulich) and his bad-guy-in-chief, the curiously named Teddy (played with menacing glee by Marton Csokas, Celeborn in.
This movie is a cut above the normal mafia crime drama story. Washington's Bob is portrayed as an intelligent, thoughtful but deeply wounded man, and the audience can empathise with his burning desire to give back to society. Chloe Grace Moretz is (again) outstanding as the equally wounded Teri trying desperately to find a way out of the deep pit she finds her life to be in. Moretz looks set to continue her trajectory to become a Hollywood Great.
And Csokas as the steely and cold Mafia killing machine makes for an extremely menacing villain.