Johnny Deep portrays real-life serial killer James 'Whitey' Bulger in this biographical crime drama.
It's 1975 and Winter Hill Gang leader Whitey's hold over South Boston is threatened by the Angiulo Brothers of the Italian-American Mafia.
In order to bring down his opposition and protect himself and his family Whitey agrees to turn informant against the Angiulo Brothers at the request of FBI agent John Connolly (Joel Edgerton), a friend of Whitey and his brother Billy (Benedict Cumberbatch), the President of the Massachusetts Senate.
However, Whitey uses his connection with the agent as a cover for committing murder and Connolly's control over his informant is scrutinised by his boss Charles McGuire (Kevin Bacon) and prosecutor Fred Wyshak (Corey Stoll).
Soon Whitey is left with no choice but to go on the run...
The cast also features Jesse Plemons, Peter Sarsgaard, Dakota Johnson and Julianne Nicholson.