On the eve of his 90th birthday, Ukrainian architect Florian Yuriev receives bad news. The state has leased his main architectural work, the Flying Saucer, to a developer on Lybidska Square in Kyiv. Now another shopping center is to be built there. With the help of young architects and activists, Florian decides to disrupt this dubious deal. Together, they plunge into the fight for the heritage of modernism against corrupt officials and scandalous developers.