Description of the synopsis must be understood in the sense that the "details" comes by watching the film. I do not think this movie is about "the darker side of women's nature" but rather the solution found by a strong woman to an extreme situation of that time. Those who lived under communism after World War II will definitely understand what I mean.
I think the movie is more about living in the '50s in a communist country rather than "the darker side of woman's nature". Very good and strong characters, very credible atmosphere. I felt the relief and happiness of the two ladies at the death of Stalin :). I liked the movie.