Bestselling author Alina Bronsky presents a comedy about two people who come from different worlds - and end up not wanting to be without each other. Warm-hearted, fast-paced and highly entertaining, they meet for the first time in a lecture: the highly gifted Oscar is 16, has an aristocratic title and has never travelled on the underground. Moni Kosinsky has three grandchildren, several part-time jobs and loves bright lipstick and high heels. She is determined to secretly fulfil her dream of studying maths, but in the lecture theatre Moni is mistaken for a cleaning lady and ridiculed. How did she come to enrol for one of the most difficult subjects of all? And how does she know the most famous professor at the university? soon Oscar is not the only one to realise that Moni's intellect and perseverance are greater than the gaps in her knowledge. Because maths doesn't care about questions of origin, age and appearance. Oscar, on the other hand, struggles with everyday life and finds a confidante in the warm-hearted Moni, of all people, who gives his life a decisive turn. The two outsiders soon form a friendship that nobody would have thought possible. A light-footed, sophisticated, tragicomic novel about a dazzling heroine and an unusual friendship that goes far beyond questions about the fourth dimension and bad cafeteria food through studies and life.