

Your government killed a scientist, then called it suicide. Errol Morris isn't buying it.
In this genre-bending tale, Errol Morris explores the mysterious death of a U.S. scientist entangled in a secret Cold War program known as MK-Ultra.
Direction
Morris reinvents documentary as psychological horror.
Acting
Peter Sarsgaard's thousand-yard stare haunts for days.
Editing
Reenactments and interviews collide into disorienting truth.

Director
Errol Morris
Trivia, insights & behind the scenes
The title refers to a biblical passage about bitter water causing death—olson's sons discovered it in CIA documents.
MK-Ultra was declassified in 1975, but Frank Olson's LSD dosing wasn't revealed until 1994, sparking this documentary.