JUST ONE DROP tells the little known story of homeopathy: the most controversial system of medicine. To many, homeopathy seems implausible. They fear it is purely a placebo effect or worse, a form of deception or quackery. Yet, homeopathy has been around for over 200 years and is used by millions of people around the world. The film explores the controversy, reveals the rich history, dispels myths and misconceptions, and asks whether or not homeopathy has been given a fair shake.

Some of the people you will meet in the film.


When their son Lucas is diagnosed with autism, the Korn family in New York set out on a mission to bring their boy back. When conventional medicine offers few answers, they turn to homeopathy with surprising results.

Alex Tournier and rachel roberts

Alex is a physicist who contracted an illness that conventional medicine could not help. After trying homeopathy, which he called “the least impressive medicine,” he got better. It became his life passion to figure out how it worked. He founded the Homeopathy Research Institute (HRI), a charitable organization in London whose mission is to explore the science behind homeopathy. RACHEL ROBERTS was studying biology when she first heard about homeopathy and thought it was “bollocks.” After investigating further she changed her mind and later joined Alex as the CEO of HRI.


In Australia, a major government agency undertook an extensive review investigating the effectiveness of homeopathy. Their study concluded: “There is no evidence that homeopathy works.”  Gerry is a homeopath and former government employee who suspects this review is flawed and begins an investigation to uncover the truth.

In modern day England, we see the popularity of homeopathy and how it is presently under attack. Though Her Majesty the Queen credits homeopathy with keeping her healthy for over 60 years, and homeopathy is a part of their National Health System, skeptics are aggressively lobbying to put homeopathy out of business for good.

And more!