Screenwriter, director and producer Steven Knight's new limited series, "The Veil," stars two-time Emmy winner Elisabeth Moss ("The Handmaid's Tale," "Mad Men") as a veteran MI6 agent who seeks to reveal a woman's secret before thousands of lives are lost. "We knew we got Elisabeth after I'd written the second script, which then liberated me to know that actually, you're driving a Ferrari – you've got the best of the best – so therefore, you can adjust the way you write stuff because you know, often, you don't need the world because she's able to do what she does." New episodes of "The Veil" are released Tuesdays on Hulu through May 28.