Bobby and his protege are both literary former-academic drunkards. They were friends of a singer who died and let them stay in her house for a year, but the house belongs to her estranged 17-year-old daughter. The daughter comes down and sees the disaster the house and the men are in and she starts cleaning the house. The guys at first don't tell her that she owns the house (her boyfriend didn't give her that letter) and try to get her out, but as she cleans and starts to care for them, they start to care for her. They get her back into school and the protege goes dry. You'd think this was the end, but it's not, and I'm not spoiling it.
It was a really excellent movie, with great acting even from the minor cast members. Besides Travolta, Scarlett Johansen and Gabriel Macht are the major cast members. It's set in New Orleans so besides wonderful music, there's the color and the language and the atmosphere. I definitely recommend this.