The episode centers on a malfunctioning Dalek named "Rusty" that appears to have developed a conscience. This serves as a mirror for the Doctor, who asks Clara point-blank: "Am I a good man?". Doctor Who series 8: Into The Dalek review - Den of Geek
" Into the Dalek " is a high-concept, gritty follow-up to Peter Capaldi’s debut, famously pitched as "Honey, I Shrunk the Doctor" but with the emotional weight of a psychological thriller. While the "miniaturisation" gimmick is pure sci-fi fun, the episode's true strength lies in its exploration of the Twelfth Doctor's abrasive, alien personality. Doctor Who 8x2