In Sweden, hundreds of refugee children fall into a state that resembles sleep for months or years at a time, and teenage girls in upstate New York develop twitches and seizures that spread like a contagion, while in the U.S. Embassy in Cuba, employees experience headaches and memory loss after hearing strange noises during the night. Traveling the world, Suzanne O'Sullivan investigates psychosomatic disorders like these, looking for links between suffering people in a mining town in Kazakhstan, Nicaragua's Mosquito Coast, and Colombia's María Mountains.