Existing in Existentialism

Existentialism is a philosophical theory or approach that believes in the existence of the individual person as a free and responsible agent. It says that people determine their own development through acts of the will. Throughout his life, Dostoyevsky struggled with the conflict between reason and faith. Crime and Punishment is about uncertainty, psychosis, realism, and introspection. What if social rules do not bound me? What if I am alone forever? What if nothing exists in the after life?