Svidrigailov is a character from Fyodor Dostoevsky's novel, "Crime and Punishment." He is portrayed as a wealthy and morally ambiguous man, known for his manipulative behavior and questionable past. Svidrigailov has a complex relationship with the protagonist, Raskolnikov, and serves as a foil to his character, highlighting themes of guilt and redemption. Throughout the story, Svidrigailov's actions and motivations reveal his inner turmoil and existential struggles. He is often seen as a figure of temptation and despair, embodying the darker aspects of human nature. His interactions with other characters, including Dunya, further illustrate his role in the narrative.