The concept of the movie is excellent, in that a married couple does not know that their partner is an assassin, and their respective agencies end up forcing them to kill each other. This is one of those times where the execution is a bit lacking, as the first hour is a drag. The pacing was slow even when the characters found out the truth about each other. It's only when they realize their love and team up that the chemistry and charisma between them bloom. The dialogue improves massively in their jabs against each other, and the action explodes. While the second half of the film was good, it comes too late as it does not feel worthwhile after the slog that is the beginning. The ending was abrupt, they destroyed their adversaries but then it ends pretty much there. So what happened afterwards? Did their agencies just give up?