en Cuevana 3. Every night, Johann puts on bat's wings and flies off to enjoy himself. Bella, troubled by her husband's hedonistic activities, consults with her friend Ulrich and plots to disguise herself as a mysterious beauty to seduce her husband. A ballet in two acts after Johann Strauss' "Die Fledermaus" choreographed by Roland Petit, staged by Teatro alla Scala and filmed for television.