Wesley Gibson (James McAvoy) is a neurotic accounts manager who works in a small cubical filling out billing reports day in and day out. He allows his boss, his girlfriend, and his best friend to walk all over him. To cope with his life, he takes anti-anxiety pills by the bottle full. Wesley has no desire to change his humdrum life, but one day while getting more pills at the drug store, he meets a beautiful woman, Fox (Angelina Jolie), who changes his life forever. Fox was sent to protect Wesley from the man who had just killed his father. Fox tells Wesley that his father died yesterday on the rooftop of the Metropolitan Building and that he will be next. Wesley is recruited into the "Fraternity," a secret society of assassins that his father was a member. Fox must train Wesley to bring out his special powers that he was born with in order to avenge his fathers death. The Fraternity's leader, Sloan (Morgan Freeman), also teaches Wesley the ways of the group, and Wesley soon becomes an assassin just like his father.