As soon as the audience has taken their seats, the conductor enters the orchestra pit. When he lifts the baton, the magic ritual of enchantment through music, play and light in an illusory world, which is to true nonetheless, begins. But what is opera, anyway? Let us dare a look behind the scenes! This film presents the institution and the artistic creation of an opera. The pupils learn about the structure of a traditional opera house. They get to know how an opera production is planned and prepared. They see how many people contribute to an opera production from the planning to the first night. What jobs and what manual skills are behind a production? How do make-up artists and costume designers work? How many rehearsals are required? All these questions and a lot more are answered by the film. And if the pupils do attend an opera performance, they will perhaps think of the many people and skills that were needed to make this evening a success. Together with the extensive accompanying material the didactic DVD is perfectly suited for various uses in the classroom.