- Evil Is Sexy: As Tae-ju becomes more and more violent, she becomes more confident, and much more sexually appealing.
- Squick: As is typical in a Park Chan Wook movie:
- The effects of the EV virus are really unpleasant. Sang-hyun's fingernails fall out at some point.
- The close-ups of the different open wounds, often with blood seeping out.
YMMV / Thirst