The magnificent Yana Tsvetkova goes to St. Petersburg to celebrate the New Year with her lover Martin. Unexpectedly, her former lover, Czech Prince Karl, also asks her to spend the New Year holidays in St. Petersburg, but with him, at the opening of a cultural center. Yana cannot refuse him, because the fate of her friends, old provincial artists, depends on it. Throughout her stay in the Northern capital, Tsvetkova is accompanied by Martin’s insane jealousy, as well as a series of mysterious poisonings and murders. Someone invisible is squeezing a deadly ring around Yana. Who is this? The one who is ready to give everything for his love, even his life!