The young French countertenor Philippe Jaroussky is one of the most exceptional artists of our time. He is highly acclaimed by critics all over the world for his virtuoso coloratura technique, as well as for his compelling and lively interpretations of baroque cantatas and operas. Together with the Concerto Köln he embarks on a journey into the world of an almost forgotten composer. Antonio Caldara (1670-1736) was on one of the most renowned opera composers of his time. Philippe Jaroussky and the ensemble transfer selected arias of the composer into the 21st century. The film accompanies the musicians to rehearsals and to the concert at the Prinzregententheater in Munich.