1944: Al Capone is living with his family in Florida and suffering from advanced syphilis. J. Edgar Hoover orders FBI agent Peter Vasco to pose as a priest and get close to the infamous American gangster, so he can obtain information that might help the Bureau nab members of Capones Chicago Outfit. Vasco and Capone bond over card games, lunches, and even a trip to Wisconsin, and Capone spills secrets that expose in vivid detail this monster who was the most iconic figure in twentieth-century crime.