"Black Demons" is a drama in four acts by the famous French playwright Victorien Sardou. In this play, the author reveals the complex relationships between people in the criminal world of the 19th century. The protagonists of the work are underground figures who are trying to maintain their power and influence on society. Sardu successfully combined the drama of intrigue with social issues, which makes "Black Demons" fascinating for readers of different age groups. It is a work that leaves behind many questions and leaves a mark on the hearts of those who encounter it.