Two handsome people meet overseas and fall in love. They get married and then we find out they're both high-level assassins. There comes a point when they each know the other is an assassin for a different boss and they start trying to kill each other. Then they have sex and start assisting each other in killing the bosses and getting away.
I suspect the only people who would really like this movie would also really like Brad Pitt and Angelina Jolie.