Nick Archer isn't much of a detective, but he's managed to get himself one pretty sweet surveillance gig: once a week he sends a jealous millionaire the photos that prove his wife is faithful, leaving Nick plenty of free nights to spend making a liar of both himself and the client's wife. But when the client turns up dead, his cheating wife is the prime suspect and it's up to Nick to clear her - except Nick has an agenda of his own, and connections to this case that go deeper than anyone realizes.