Mrs. Linde stops by to help Nora prepare for a costume ball. Nora explains to Mrs. Linde that Krogstad is blackmailing her about the earlier loan. After Nora again begs Torvald not to fire Krogstad, her husband sends Krogstad an immediate notice of his dismissal. Nora is desperate and decides to ask help of Dr. Rank, a family friend. Before she can ask him for his help, Dr. Rank makes it obvious that he is in love with her and Nora determines that because of this it would be unwise to ask his help. Krogstad visits Nora once again and this time leaves a letter for Torvald in which Nora's dishonesty is revealed. To divert Torvald's attention from the mailbox, Nora elicits his help with her practice of the dance she is to perform, the tarantella. Finally, Nora asks Torvald to promise that he will not read the mail until after the party.