The Mysteries of Kratom is a feature-length, journalistic documentary that tells the story of kratom, a Southeast Asian tree whose leaves are used in traditional medicine there to deal with pain, exhaustion, diabetes, and other maladies. In recent years, kratom-based products have been sold widely in the United States, with promises to address pain and anxiety and help people wean themselves off opioid addiction. These sales take place in a gray market. The concoctions are not approved by the FDA for human consumption. Still, many people in the United States swear by kratom-based products even while others blame them for contributing to deaths of their loved ones. Truth be told, not much is known about kratom, and much of the information spread about it is misleading or downright wrong. This film examines the kratom phenomenon through personal, professional, and scientific lenses. It is the first journalistic, scientific documentary made with the goal of helping people understand the potential for kratom to do good or ill.