I’m pretty sure it was a movie, but the opening scene is a teenaged (?) girl who places a clear plastic bag over her head and duct tapes it closed around her neck. She then zip ties her hands behind her back. As her body convulses, she falls to the floor. It freaked me out so much I closed the window. I may have seen it about a year or two ago … maybe on Netflix? Not sure if it was a movie, or something like Black Mirror or Guillermo del Toro’s Cabinet of Curiosities.