"Prologue: The Locksmith" is the third mission in Origins, Act Three of Monaco's campaign. Like most of the Origins missions, this is a representation of a character's backstory as told by the Lookout. After discussing her own backstory, she then transitions to tell the origins of the Locksmith.
Ready? Collect the trophies and as much money as you can... you will eventually be caught. THERE IS NO ESCAPE!
The objective of the mission, like almost all of the objectives in the Origins campaign, is to steal as much as possible before being caught. There is not an exit, and guards will spawn indefinitely.
The Lookout: "After Haiti I traveled to the US under refugee status, and ended up in Las Vegas."
The Lookout: "Met a man at the Paris Hotel."
The Lookout: "He had plenty of friends there, including the blackjack dealer. "
The Lookout: "I became his spotter."
The Lookout: "Psst. Count's high big brother."
Dealer: "Monseiuer? Your play."
The Locksmith: "..."
The Lookout: "Psst. Pit boss on the floor."
The Locksmith: "Double down."
Dealer: "Oui monsieur."
The Lookout: "He got caught, I walked out."
The Lookout: "They broke his hand."
The Lookout: "And so the world owed him a debt too. Another freed from the bindings of morality."