S01e04 — Inside Man

This episode hammers home Grieff’s thesis: everyone is a murderer; you just need the right reason and a bad enough day. Harry Watling became the living proof of Grieff’s world view. The Resolution (and the Twist)

Grieff didn't help Beth out of the goodness of his heart. He did it because he recognized a "decent person" (Harry) about to commit a crime, and he wanted to observe the mechanics of that fall. Inside Man s01e04

If you'd like to of the post, just let me know: This episode hammers home Grieff’s thesis: everyone is