This is a stylized action comedy, in the vein of films like Kill Bill, Bullet Train, and Smokin' Aces, hence cast should have a good deadpan delivery and sense of comedic timing.
A mafia soldier on the run after stealing from his boss makes a chance encounter with a young woman, escaping her creepy harrassing uncle and go on the run together, staying just one step ahead of the over the top cast of mafia hitmen sent to eliminate him, as well as an inexperienced, independent amateur hitman hired by the young woman's uncle to retrieve her at any cost.