Esther Waters follows the life of a young, devout servant who faces social ostracization and economic hardship after becoming pregnant out of wedlock. Esther struggles to maintain her independence and provide for her son while navigating the rigid class structures and moral judgments of late Victorian England. The narrative follows her through various positions of domestic service and the precarious world of horse racing, where she encounters both exploitation and fleeting moments of stability. The prose maintains a grounded, observational tone, focusing on the material realities of working-class life and the endurance required to survive in an unforgiving urban environment.

Readers and critics frequently highlight the novel for its unflinching commitment to realism and its sympathetic portrayal of a marginalized protagonist. Discussion often centers on the author's meticulous attention to the daily struggles of the working class, which provides a stark contrast to more idealized Victorian narratives. Many observers note that the pacing is deliberate, mirroring the repetitive and often grueling nature of Esther's life. The work is widely regarded as a significant contribution to the naturalist movement, praised for its lack of sentimentality and its focus on the material conditions that shape human destiny. Readers often appreciate the depth of character development, which allows Esther to emerge as a complex figure rather than a mere archetype of suffering.