Michael Lynch is one of Dublin's most notorious criminals. He has two wives, Christine and Lisa (they are also sisters), as well as many children. When he isn't spending time with his family, he is plotting heists with his gang. His actions make him an iconic figure, and he has a rapport with the general public despite being a criminal.
During his elaborate heists, he concentrates on the showmanship as much as the crime itself. He pulls off a daring art theft, stealing several priceless paintings from Dublin's best art gallery, giving the authorities the slip. The police become more determined to catch him as time goes on, in particular Noel Quigley, an officer whose ambition to catch Lynch becomes an obsession. His actions also gain the ire of the IRA.
Lynch finds himself in trouble when he is unable to sell a stolen Caravaggio painting, giving Quigley the opportunity he was waiting for to try and catch him. Lynch is forced to go on the run, with his popularity with the public at stake.