In a scene Det Munch tells Dr Huang that his father committed suicide when he was 13. In real life, Richard Belzer's father committed suicide when he was 22.
John Munch is reunited with his uncle, Andrew Munch, the brother of his father, who committed suicide when he was 13. Munch had previously mentioned his father committing suicide to Amy Solway in the episode Painless (2004) and he mentions it again to George Huang in this episode.
Jana Robbins (Sean Darringer) previously played the role of Emily Porter in episode 3.19, Justice (2002).
John Munch has a large poster of jazz pianist Thelonius Monk on a wall in his apartment.