Comparative literature has always provided space for the different nations to talk to each other and interact together. The intertextuality that reflect an audience’s interpretation of the text, can be used according to the tenets of comparative literature. Sadegh Hedayat, as one of the pioneers of modern literature in Iran, including writers who have a deep acquaintance with Western literature, especially French literature, has been influenced by many foreign-language writers. The short story of Whirlpool, which takes place in a bitter and naturalistic perspective, is one of the works of Hedayat which is strongly influenced by the naturalism, and especially the naturalistic novel of Pierre and Jean by Guy de Maupassant. The theme of treason, which leads to the ruination of a seemingly happy family, and the narrative structure of this story are the link between these two works. This theme is developed in two works using the rules of the naturalism including elements of determinism. The main issue in the present article is to find the roots and examples of treason in two works by relying on the narrative structure and the analysis of the behavior of characters in confronting this familial crisis. Finally, we will try to achieve the main goal of this comparative study which is a description of the elements of naturalism in Whirlpool and its coincidence with the naturalistic elements of Maupassant’s novel.