: Kim Sum (the app's developer) lures the serial killer, Yun-o, into a trap. While he believes they are planning an escape together, she conducts a video chat with him from a distance while an accomplice (or pre-planned mechanism) physically attacks him.
: In the final moments, Sum asks Yun-o to tell her he likes her one last time as he dies. Critics on Reddit suggest she blinded him during the attack so he wouldn't know it was her, a decision interpreted by some as a "twisted act of love" or a way to preserve their unique bond. : Kim Sum (the app's developer) lures the
: Reviewers on IMDb and Reddit frequently mention the "hypnotic" and "surrealist" cinematography that maintains a heavy, dark atmosphere throughout the episode. dark atmosphere throughout the episode.