The threat of the Zoo intensifies when it's clear that they're not going to limit themselves to scare tactics, and the girls begin to wonder if there's someone else who's also receiving messages.

Rowan's haunted by the memory of Dunbar's suicide when she returns to Nicki's house, and girls night in takes an unexpected turn.

Elisia begins to suspect that Nicki could be the fourth target, and unusual happenings suggest that there may be outside influences motivating individuals' behavior.