The Departed is a 2006 crime drama directed by Martin Scorsese that tells the story of two undercover agents, Billy Costigan (a police officer infiltrating an organized crime family) and Colin Sullivan (a criminal posing as a police officer), who attempt to discover each other's identities. Set in Boston, the film explores themes of mistrust and corruption, as everyone lies and no one can be certain of anyone else's true allegiance. It won several Oscars including Best Picture and Best Director for Scorsese.