The Librarians investigate a series of accidents at a London nightclub, which turns out to be owned by Dorian Gray.
- All Myths Are True: This time, Dorian Gray is a real person.
- Badass Bookworm: The bouncer at the club gets into an argument with Stone over great English vs. American poets. They bond over Dylan Thomas (who was Welsh).
- Exact Words: The clippings book didn't alert the Librarians to Dorian Gray's activity because it only alerts them to new threats, whereas Dorian Gray has been active for over a century.
- Freudian Excuse: Eve hates having her picture taken after an entire career of being objectified.
- Hangover Sensitivity: Cassandra ends up with a massive hangover after Eve swaps out her picture from Dorian Gray's portrait.
- Hoist by His Own Petard: Dorian is killed when the Librarians make a portrait of Eve made up entirely of pictures of Dorian and she dives off the club's roof.
- It's All About Me: Dorian Gray, of course.
- Magical Defibrillator: Jones and Stone improvise a pair of shock paddles at a diner to save a girl who's dying of the effects of a massive drug overdose. The shock works, but it blasts Stone across the room.
- Noodle Incident: Jenkins' familiarity with Dorian and the club. Apparently he went off-reservation for a while in the 19th century.
- Not the Fall That Kills You: Dorian bites it when Eve dives off of a rooftop, being subjected to the power of a new portrait. See Hoist by His Own Petard.
- Running Gag: Everyone can get into the club except Stone—even Jenkins got in!
- Sense Loss Sadness: This is the fine print in Dorian's immortality deal. He can indulge in any sin and the consequences are transferred to someone else, but the consequences include the effects of the drink and drugs. Dorian himself never feels a thing, rendering his immortality hollow.
- Shaped Like Itself:Cassandra: Oh, also, some of the photos have been... What's that word that means manipulated?
- Unsuspectingly Soused: Played with. Cassandra has one tame drink at the club, but over the course of the night gets more and more plastered without having had anything else. As it can be seen in the background after having her first drink, she was under the effect of Dorian Gray's portrait and being deliberately sabotaged by him during her deduction of the timeline of the victims.