Three
Three young criminals; a jewel thief, a con artist, and a computer hacker, are told by an anonymous man that 'they' - the organization that he works for, have in their possession, full dossiers on each of them. And if the authorities should ever get these dossiers, they will probably be in prison for the rest of their lives. So in exchange for making sure that that doesn't happen, they have to work for 'them', the organization. Whose goal is 'to protect the status quo'. So, they are sent out to solve baffling or unsolved crimes, or to go after criminals, who have been on the loose too long.
