A young priest, Serge Mouret, struggles to reconcile his ascetic religious devotion with the overwhelming, primal forces of nature after a bout of amnesia leads him into a forbidden romance. Serge Mouret attempts to maintain a life of extreme spiritual purity, but his physical neglect results in a collapse that strips away his memory and his identity as a member of the clergy. While recovering in the lush, isolated garden known as the Paradou, he encounters Albine, and the two engage in a relationship that mirrors the biblical narrative of Adam and Eve. The narrative employs a third-person perspective to contrast the rigid, sterile environment of the church with the vibrant, chaotic fertility of the natural world.

Readers and critics frequently note the stylistic shift in this work compared to other novels in the Rougon-Macquart cycle, highlighting its more poetic and symbolic tone. Discussion often centers on the effectiveness of the Paradou garden as a character in its own right, representing the untamed power of nature against the constraints of religious dogma. Many observers point to the tension between Serge’s internal spiritual conflict and the external environment as the primary driver of the narrative’s intensity. The book is often cited for its bold exploration of sexuality and innocence, which continues to generate debate regarding Zola’s critique of the Church’s influence on human development.