A hitman who's in Bangkok to pull off a series of jobs violates his personal code when he falls for a local woman and bonds with his errand boy.

Joe: Where there's money, there's competition and the guy paying me usually wins.
Joe: I was taught four rules...
Joe: One: Don't ask questions. There is no such thing as right and wrong.
Joe: Two: Don't take an interest in people outside of work. There is no such thing as trust.
Joe: Three: Erase every trace. Come anonymous and leave nothing behind.
Joe: Four: Know when to get out. Just thinking about it means it's time. Before you lose your edge, before you become a target.
Kong: [in Thai] Duck fucker!