There are movies that follow a relatively obvious plot. There are movies where you expect every plot twist ten minutes in advance. This certainly is one of those movies. But then, why would you go see a comedy looking for gripping plot lines? This is one of those movies that would have bombed, in the wrong hands. Given an average director and a mediocre cast, this movie would have been barely watchable. But under the care of Bob Odenkirk and a trio of skilled actors, it turns out as one of the funnier movies of the year.
Let me be clear about one thing: this movie is all about subtle, dry humor. The situations are, on their own, intentionally not funny. Played a different way, many of them would be downright terrifying. But the way the actors carry themselves through it, their timing, their facial expressions, bring out the absurdity of the serious script.
If you go into the movie expecting it to hit you in the face with everything it's got, you may be disappointed. But if you go prepared to pay attention and catch the nuances as well as the broad strokes, you'll barely stop laughing.