In this compelling exploration of the intersection between history and pharmacology, a team of experts investigates the potential link between the psychoactive properties of the henbane plant and the enduring folklore of flying witches. Through a series of controlled experiments, the researchers analyze the physiological and psychological effects of the plant on human volunteers, seeking to determine if the vivid, dreamlike experiences reported by participants could provide a scientific basis for the centuries-old tales of supernatural flight and spirit encounters. By bridging the gap between ancient beliefs and modern medical understanding, the documentary offers a fascinating look at how the human mind interprets the powerful, mind-altering effects of nature's most potent substances.