In this chapter, Fyodor Dostoevsky introduces Dunya Raskolnikov, Rodion's devoted sister, who embodies strength and resilience in the face of adversity. Dunya is currently embroiled in her own set of struggles, primarily surrounding her complicated relationship with Svidrigailov, a man from her past who has reemerged in her life.

The chapter begins with Dunya's situation becoming increasingly dire. She is faced with the unwelcome advances of Svidrigailov, who is portrayed as manipulative and morally ambiguous. Svidrigailov's interest in Dunya is not purely romantic; he is also drawn to her strength and the purity he perceives in her character. His intentions are suspect, and Dunya is aware of the danger he represents, compounding her sense of entrapment.

Dunya's character is explored in depth as she grapples with the societal expectations placed upon her as a woman in 19th-century Russia. She is confronted with the challenges of poverty and the sacrifices she has had to make for her family, particularly for Raskolnikov. Throughout the chapter, her unwavering loyalty to her brother is evident, even as she struggles with her own moral dilemmas. The love she harbors for Raskolnikov is juxtaposed against her fear for his well-being, particularly as she suspects he is entangled in something dark.

The tension builds as Svidrigailov's past actions come into question, including his treatment of others and the mysterious circumstances surrounding his wife's death. Dunya’s interactions with him reveal her strength, as she does not shy away from confronting him about his behavior. This confrontation is significant, showcasing her moral integrity and determination to protect herself and her family.

Dunya's resilience is further highlighted in her discussions with her mother, who is unaware of the full extent of the troubles facing her children. Despite the hardships, Dunya remains a source of strength for her mother, embodying the role of caretaker. Her character serves as a counterpoint to Raskolnikov’s inner turmoil, illustrating the different ways individuals respond to suffering and moral ambiguity.

This chapter not only deepens the reader's understanding of Dunya but also emphasizes her importance in the narrative. She is not merely a supporting character but a pivotal figure whose choices and struggles reflect the broader themes of sacrifice, love, and the quest for moral clarity in a world fraught with ethical dilemmas. As Dunya navigates her own challenges, her relationship with Raskolnikov becomes increasingly significant, setting the stage for future developments in the novel.