|No, not that kind of Score... well, okay, maybe.|
The basic template goes something like this... He's the best at what he does, but he's tired of the life (assassin, bank robber, burglar, con artist, whatever), and wonders if an old sinner like himself deserves a second chance. You see, to survive, he lives by a code and that code doesn't permit entanglements or relationships. So he's isolated, he's lonely and he's tired of always looking over his shoulder. About this time, a woman enters the picture. She's younger (sometimes much, much, much younger), but she falls for him even though he's creepily secretive about his personal life in a way that the average female reader of Vogue knows spells trouble. Her love makes him wonder if maybe redemption is in the cards. He starts dreaming of how they'll "go away" together, and start anew. But... there's a catch.
The catch is that he works for the kind of people that won't let him "walk away." They never do. Inexplicably, rather than just disappear, our usually meticulous hero will make a point of telling his boss/associates that he's looking to quit. Like that is ever a good idea, and they launch operation bump off/set up the hero. At this point, there are several things you can count on. A big score will present itself, but there will be something dubious about it. He won't like it. It will be unlike anything he's ever attempted - "too" dangerous, risky, complicated...whatever. Eventually, he'll agree to it because either he needs it to retire on, or because his handlers put the screws to him... or both.
Sometimes the writer will throw a young hotshot apprentice type into the mix - he wants to learn from the best but will he betray his mentor?You bet your sweet bippy he will. But either way, our hero's meticulously orchestrated plan will eventually go sideways. The hero scrambles to improvise on the fly. Sometimes he makes it, sometimes he dies ironically when he is so, so close (doesn't really matter which), but no one ever gets out clean. There's always a price to be paid even if the hero lives. Must be those dirty consciences getting the better of Hollywood again.
The Bourne Trilogy
The Thomas Crown Affair