Levi is a hitman, an assassin really. And a rich one for that matter. He is cold, calculating, blunt and detached from society.
Simone on the other hand is a 22 year old orphaned collage dropout who has four siblings to fend for.
They meet in an unlikely manner at the city market after Levi completes one of his jobs and in an unlikely turn of events, he ends up needing her help, he doesn't want it though, he just happens to be inconvenienced.
They find themselves in an interesting situation, however, living as some sort of dysfunctional family.
It's not an ideal scene for any of them, but something intangible prompts Levi to stay.