Quirky killers are character studies. Sam Rockwell's performance as Mr. Right makes the best in this situation playing well off Anna Kendricks neuroses. Finding out that her boyfriend would like to have a three way with the girl he tried to sneak into their place at the last minute, priceless, but no cigar. Mr. Right is the hit-man with a heart of copper. He kills bad guys who want to take out contract kills on others. He's good at his job. He meets Anna at a bar and they hit it off immediately. Mayhem ensues and the body count begins. Mixed in all of this is the relationship of the two which is believable. The bad guys are cardboard cutouts but pliable enough for a killer comedy. Overall, it works in the big climax where Anna's character comes out even more so but you have to suspend belief that her chicken legs has enough power to do a round off kick and push a guy back when she kicks him in the chest.
