When Europa-Park opened some 50 years ago, hardly anyone believed in the success of a theme park in southwestern Germany. Today, it has broken all the records. What is the secret of this incredible success? And who is behind it?Benno Stieber paints a multifaceted portrait of family entrepreneur Roland Mack and provides a glimpse behind the colorful scenes of a theme park that is visited by almost six million people every year, including many stars and celebrities.