The detective Vseslav Smirnov is approached by an old friend, Eduard, who asks him to find his missing wife Nana. Soon Eduard’s cousin Oleg dies. He was a digger and claimed that under Moscow there is a mysterious labyrinth.
While relaxing in Crete, Feodora came up with a way to meet a young handsome man—the son of a wealthy man, Korneyev. She dressed as the Minoan princess Ariadne, met him among the ruins of the palace of Knossos, and handed him a ball of thread. The plan worked: Vladimir proposed to Feodora. But she was happy for only a short time—the young husband behaved very strangely…