Ekaterina Mogileva was once a popular singer. She was not only loved by the common public, who danced at discos to her main hit “Dusya-lapusya”, but also respected by professionals. And yet, Katya left the stage when she married Ararat Anikyan, a young but very successful businessman. He dreamed of children, and Katya was ready to give them to him... But it didn’t work out, and her husband left. Ararat left the castle that he built because he had dreamed of it since childhood to his ex-wife and continued to regularly visit her there... Katya was happy with everything until she fell in love and wanted to break off relations with her ex-husband. However, Ararat was not ready to let go of his Dusya-lapusya and showed up at the dinner party that she threw in honor of her fiancé. And during it there was a murder that changed the lives of many...