"Stranger Things" prequel play producer Sonia Friedman reports audience medical emergencies due to immersive experience.

Olivier-winning play "Stranger Things: The First Shadow" producer Sonia Friedman revealed medical emergencies in the audience due to its immersive experience, which is a prequel to Netflix's series. Produced by Friedman, who also produced "Harry Potter And The Cursed Child," the play won awards for best new entertainment/comedy play and best set design. Medical emergencies were handled, and all attendees were fine.