A rising young director is shooting a frightening film about a serial killer in a hockey mask. But when a man goes missing near the set, a real-life horror story unfolds. Keith Morrison’s latest Dateline original podcast series takes us into a mysterious netherworld of illusion, fantasy, deception and death. Listen to all episodes of The Man in the Black Mask now completely free, or subscriber to Dateline Premium to listen ad-free: DatelinePremium.com