“Heavenly Voices” tells the story of the castrato phenomenon, and how the most gifted amongst these singers rose to international stardom. Names like Farinelli, Senesino, Caffarelli and Carestini come to mind, to name but the most famous ones, who enjoyed great popularity during the time of the great poet and librettist Metastasio and the opera seria. Max Emanuel Cencic and Philippe Jaroussky, two of today’s singing stars, take us back in time and talk about operatic entertainment in the Baroque Age. This is illustrated by paintings and prints from the time as well as major performances of today. In this film, many countertenors are featured in famous roles and in interviews, amongst them Jochen Kowalski, Andreas Scholl, David Daniels, Daniel Behle and Valer Barna-Sabadus.