The Moxie-produced series following the CIA’s deadly LSD experiments dropped its first teaser trailer this week.

The six-part series is directed by Errol Morris, and Executive Produced by Robert Fernandez with Errol Morris and Caroline Baron. Wormwood follows Eric Olson who is on a mission to uncover the truth behind the circumstances around the death of his father, a CIA employee who fell from a New York City building in 1953 with LSD in his system. The show stars Peter Sarsgaard, Molly Parker, Tim Blake Nelson, and Bob Balaban.

The show blends non-fiction with re-enactments and interviews to delve into the experimental tactics of the CIA in the 1950s. Frank Olson, who is played by Peter Sarsgaard, was an American bacteriologist and biological warfare scientist whose death sparked many questions and conspiracies around the nature of the CIA’s work.

The full series premieres at Telluride on September 1st, and goes on to play at the Venice Film Festival on September 6th and 7th. Watch the teaser trailer for Wormwood above, and be sure to tune into the full series release on Netflix on December 15th.