Le Malade Imaginaire by Molière
The story revolves around a hypochondriac named Argan, who is convinced he is seriously ill and spends all his time and money on medical consultations and medicines. His obsession with his health leads him to plan the marriage of his daughter to a doctor to ensure free medical care. The play humorously explores themes of health, medicine, and the gullibility of people when it comes to their health!