Jacob knows he did what he had to do, to try and save lives, some people had to die. There's no doubt about that. But like Rosita, he never asked for the life that he's got, never wanted it, it just happened to him. And once you're an assassin, you can't ever stop. You know too much about the world, you know too much about how other people want to hurt others, control them, enslave them. If you leave, you turn your back on all of those people who need you. He just can't do that. But it doesn't mean he doesn't dream he could have had a different life. Duplicity offers him some respite.

"Oh, you're right. But when he walked into that cave, and I saw him again? It came back like a flood. Like it was never gone- like I hadn't been gone." He explains, "That's why it feels like it was always there."