The future British society will be under the high pressure of totalitarian rule. It will not allow the existence of social roles such as homosexuals and infidels. The people will survive under the dark regime. This night, young woman Ivy (Natalie Portman) is in danger and fortunately gets the help of V (Hugo Weaving). V is a mysterious man who always wears a mask. He has high IQ and extraordinary combat effectiveness. V inherited the mission of a former revolutionary hero. In order to overthrow the absurd totalitarian ruling class, he established a mysterious underground organization, destroyed London's iconic buildings, and ignited the flames of anti-government. Ivy had in-depth contact with V, and not only learned about V's mysterious mission, but also gradually discovered her own life background, which destined her and V to be on the same side.