"How to be a Gentleman" is an attempted update of "The Odd Couple" that's rude, crude and downright shocking on one count - it's amazing that an attempted comedy could be this utterly unfunny.
If you want to blame somebody for this disaster, you have to point the finger at David Hornsby ("It's Always Sunny in Philadelphia"), who created, wrote and stars in this sitcom. He plays Andrew, a rather prissy writer who has an etiquette column about how to be a gentleman (duh) in a men's magazine.
Andrew doesn't have much of a life. Just a really mean, unpleasant sister, Janet (a waste of Mary Lynn Rajskub), who not only henpecks her husband, Mike (Rhys Darby), but bullies Andrew.