Billy Grimm to the rescue? This is a photo from "Cult," the show within a show on Cult.
Added:
Jeff and Skye are doing some investigating in this scene from Cult. It's from the show's second episode.
Added:
Robert Knepper is on the set of Cult in this scene. The show within the show Cult, we mean. It's confusing.
Added:

Cult Season 1 Episode 2 Quotes

[to Kelly] You see how very alike we are? Both so clever in how we keep our darkest secrets.

Billy

[to Skye] It's starting to be a thing with us.

Jeff