Coup!

Floyd Monk (Peter Sarsgaard), a servant in a wealthy Manhattan household, wants out of his life of servitude and humiliation. When his employer Jay Horton (Billy Magnussen) and the rest of the household are struck by the 1918 flu, Floyd sees his chance to take control. By the end, Floyd has remade himself entirely, though the cost of that transformation leaves him unrecognizable to those who knew him before.