He is the boss of one of those family businesses where time seems to stand still. In the 5th generation, Philipp C. A. Klais builds spectacular organs for churches, concert halls and private individuals all over the world in his inherited manufactory Klais in the middle of Bonn's Nordstadt. The film tells of the passion of a small company in the Rhineland and its more than 60 employees, showing the development of the projects from the first sighting in a church or concert hall to the planning, production, transport of the individual parts and the consecration of a new or restored organ.