Charlie's ex-girlfriend, Rebecca, visits and turns to him for comfort, due to a failing marriage. They end up sleeping together and now Charlie begins lying to Kirsten and Rebecca. Bailey finds out that Kate's boyfriend, Tom, is too nice and feels bad trying to win Kate over. He eventually succeeds. Julia tries to pass for 18 to get a job waitressing in a club. Claudia pretends to be younger so she can enter a violin competition.