This year the opera in the quarry of St. Margarethen features a cast of international stars. "Floria Tosca" is one of the signature roles of the versatile soprano Martina Serafin, whose beautiful voice has lately been heard in all the major opera houses around the world. Vocal quality of the highest level can be expected from the international singers hired by the new director of the opera, Maren Hofmeister. The production team will also contribute to an unforgettable evening at the opera. The staging is by director Robert Dornhelm. This year his work once more guarantees a very special visual and theatrical pleasure. The musical director is Michael Güttler, the principal conductor of the Finnish National Opera in Helsinki. For the first time the orchestra of the State Opera of the Prague National Theatre will perform in St. Margarethen.