The story of a man who wants to make a film before he turns 50, and the story of this film is about a serial killer nicknamed the Viper of Tehran. The Viper of Tehran goes to those who abuse children and kills them with a special poison. This man, the director, does not have a good relationship with his child in his own life, he has not wanted him since the birth of his child, and after divorcing his wife, he did not want to see his child. But a situation arises where he is forced to take care of his child and gradually he becomes a good father. This director's life has something in common with viper of tehran!
The brilliant and unexpected ending, excellent cinematography, the unique character of Peyman Maadi and his excellent acting, the good music used in the film and the subject of the story have gone hand in hand and turned this series into one of the best Iranian series.