Raskolnikov is a mentally insecure student who has stopped going to university. He lives in a very small, rented room in Saint Petersburg . He does not let anyone help him, not even his friend Razumihin. He plans to kill and steal money from an old pawnbroker and moneylender , Alyona Ivanovna, but it is not clear why he wants to kill her yet. While he is thinking about this plan, Raskolnikov meets Semyon Zakharovich Marmeladov, a sad drunkard who recently spent all of his poor family's money on drinking. He also gets a letter from his mother. His mother says that she will soon visit St. Petersburg. She writes about his sister's sudden engagement , saying that they will talk about it when they arrive.