"Lost in the Dark" is the fifth episode of Durarara!!x2 Ketsu and the fifty-seventh episode overall of the Durarara!! anime.
Kasane Kujiragi is revealed to have sinister intentions for Shinra Kishitani, much to the alarm of Celty Sturluson. Elsewhere, Ran Izumii's unexpected arrival throws a wrench into Masaomi Kida's and Chikage Rokujou's ongoing duel. As Vorona flees from the police with Celty's head in her possession, she finds herself troubled over her change of heart.
adapted from what manga or LN chapter?
references to previous episodes?
In order of appearance (not including OP)