Amanda decides to throw a housewarming party and makes Alison work late so that she can make a move on Billy. Alison continues to receive threatening letters and phone calls. Keith slips something into her drink and attempts to take advantage of her. Keith purposely injures his head after Billy shows up and claims that he was attacked. Billy doesn't believe him. Keith pays a homeless man to make an obscene phone call to Alison while Keith is with her. Jane files for divorce and Michael moves in with Kimberly. Jake attempts to make Jo jealous. Matt ends up losing his job.