This play takes place in the office and dining room of a small French flat. The Professor, a man of 50 to 60, is expecting a new Pupil (aged 18). The Professor's Maid, a stout, red-faced woman of 40 to 50, worries about the Professor's health. As the absurd and nonsensical lesson progresses, the Professor grows more and more angry with what he perceives as the Pupil's ignorance, and the Pupil becomes more and more quiet and meek. Even her health begins to deteriorate, and what starts as a toothache develops into her entire body aching. At the climax of the play, after a long bout of non sequiturs (which are frequently used in Ionesco's plays), the Professor stabs and murders the Pupil. The play ends with the Maid greeting a new Pupil, taking the play full circle, back to the beginning.