Watch Wormwood Online for free at CouchTuner. Acclaimed documentary filmmaker Errol Morris makes a welcome detour into (semi-)scripted fare with this six-part Netflix miniseries that follows one man’s twist-filled, six-decade investigation into the mysterious death of his father—an event that is tied to the CIA’s secret LSD experiments and Cold War program known as MK-Ultra. It’s based on a true story, and blends real-life interviews with dramatic scripted scenes starring Peter Sarsgaard alongside Molly Parker, Tim Blake Nelson, Bob Balaban, Michael Chernus, Jack O’Connell, Christian Camargo, and Scott Shepherd.