Come and enter the Wiener Staatsoper anno 1880. Mysterious things are happening behind the curtains. A rumor among the actors says that a dark shadow is haunting the opera. But the theatre management won’t acknowledge these baseless mutterings and has gone ahead with the arrangements of a premiere. Even the royal couple, Emperor Franz Joseph and Empress Elisabeth have announced their attendance. But just on this fateful day the main actress Sophie suddenly vanishes. Could it be the work of the infamous shadow? Could the rumors really be true? Your team has to go behind the scenes as royal detectives in this mystery escape game to spoil the plans of the ominous shadow.