Dave's love is music. The wedding band is a way to get paid a bit to do what he likes. He really wants to be on tour with a better band. But so far, such an opportunity has eluded him. Dave had a tragedy when his girlfriend's parents caught him and Julie naked at their house. He is trying to get back into better standing with those parents.
At one wedding, Dave meets Gretchen. Apparently they had met before. But he does not recall much about her. Gretchen is unlike Dave's girlfriend. She is tall and slender. She lives in New York City. Dave eventually thinks he loves Gretchen. However Gretchen cannot stay with a guy who is about to be married to his long time girlfriend.