Jean is a composer, his wife Helena a pianist. They can barely make a living from their music. Until their landlady Klara waives their rent, quits her job and starts living on the roof of their house. A radical step that proves to be a catalyst for Jean's creativity and Helena's social commitment. The house soon becomes the lively epicenter of a search for meaning that spreads throughout the city. But Klara's sudden change of life also creates controversy.