This is a classic. Set in Russia it deals with the psyche of humans. Each individual carries a mental notion of ethics and morality with him. Whenever actions are committed outside of the boundary, it creates a sense of guilt. Some over power the guilt but some get overpowered by guilt. When guilt overpowers once, it's in itself is a punishment. The "punishment" in "Crime and Punishment" is about the internal punishment which leads to external punishment as mandated by law.
A classic piece of work which brings out the shades of human mind and how it reasons with itself. The story is very simple but it grips you.