A mysterious lab. A sinister scientist. A secret history. If you think you know the truth about Eleven’s mother, prepare to have your mind turned Upside Down. It´s the summer of 1969. The world is changing, and Terry Ives isn´t content to watch from the side lines. When word gets around about an important government experiment, she signs on as a test subject. But behind the walls of Hawkins National Laboratory – and the piercing gaze of its director, Dr Martin Brenner – lurks a dark conspiracy. To face it, she´ll need the help of her fellow test subjects, including a mysterious young girl with unexplainable powers. . .