The plot thickens as this week’s episode, “For the Triumph of Evil,” starts to delve into the darker side of Ichabod (Tom Mison) and Abbie’s (Nicole Beharie) unusual alliance. To call this a friendship isn’t quite true…yet. This unlikely duo are still exploring the nuances of working together on something much grander and frightening than they could imagine and what they must face in this episode is nothing short of terrifying.