Nora considers suicide the only way out of the trap of Krogstad's control in which she and her husband are placed when Krogstad confronts her with what he knows.
When the play A Doll's House opens, Nora and Torvald Helmer are happy that Torvald has secured a new position which will provide them with more income. Before he became connected with the Mutual Bank, Torvald worked such long hours that he ruined his health. His physician told Nora that Torvald needed to spend a year in the south of Europe, but Torvald did not initially want to go. After he refused to spend the money, Nora claimed that her father lent her the money for the trip, and they left home. Eventually, Torvald recovered his health.
When the man who loaned her the money appears on the scene, life becomes more complicated for the Helmers. Called a "moral invalid" by Dr. Rank, Krogstad is guilty of forgery just as Nora is, who signed her father's name on the loan of money that she claims was given to her. Furthermore, Krogstad is the one who has loaned Nora the money. He also works at the bank where Torvald now works. Having been previously acquainted with Krogstad's moral character, Torvald dismisses Krogstad's character, as he was once caught in a forgery.
In act 2, Krogstad comes to the Helmer home and informs Nora that her husband has fired him; he also tells her he is aware that her father died three days before the date of his supposed signature on the promissory note. When Nora admits to having signed her father's name, Krogstad asks, "Didn't you realize that what you did amounted to fraud against me?" Now caught in a moral quandary, Nora contemplates suicide as she realizes that Krogstad can use her crime to blackmail Torvald into giving him a higher position instead of firing him. Krogstad, in turn, guesses at her thought. He warns her that her death would not stop him from getting what he wants. Also, he tells her, "your reputation would be in my hands," so her death would merely be an act of futility.