The Whole Nine Yards (2000)
After a mobster agrees to cooperate with an FBI investigation in order to stay out of prison, he's relocated by the authorities to a life of suburban anonymity as part of a witness protection program. It's not long before a couple of his new neighbours figure out his true identity and come knocking to see if he'd be up for one more hit—suburban style. chicago, illinois, gangster, montreal, canada, mafia, dentist, hoodlum