Penitent goes to the Hairbrain house to try to ascertain if it was a devil or Mistress Hairbrain who appeared to him in his bedroom. When Mistress Hairbrain denies any knowledge of the incident, he realizes that it was, in fact, a devil. He delivers another penitent speech, and advises Mistress Hairbrain to honour her vows of marriage. Mr. Hairbrain enters to catch the tail end of their conversation; he is pleased to hear Penitent giving his wife sound moral instructions. He invites Penitent to accompany them to a feast which will be held at Sir Bounteous' home on the following Tuesday.