Crime and Punishment/Metamophosis

Both Crime and Punishment and Metamorphosis have instances where the difference between illusion and reality is questioned. In Crime and Punishment Porfiry seems to know about Raskolnikov's guilt from very early on, but he does not directly say it and he arrests another man for the crime. Throughout the novel Rasko struggles to determine whether Porfiry really knows of the guilt and the arrest of Nikoly is a show or Porfiry is pretending/assuming to know of Rasko's guilt and putting on a show to gain a true confession. Rasko tries to determine what the reality is partially by talking to Razumihin and the doctor to find out details about the case, but ultimately Rasko becomes ill, delirious, and paranoid partially because he cannot figure out what is real. Does Porfiry really know or is he just playing mind games hoping for a confession? In Metamorphosis, Gregor, the narrator, transforms into a bug and spends his days crawling around his room. Throughout the story, the reader, not the characters, questions whether Gregor has truly become a bug. Because he is the narrator and the thoughts of no other characters are revealed it is possible that Gregor simply thinks he has become a bug when in reality he could have become ill or insane.