French poet Henri Michaux spent years experimenting with mescaline and hashish, sketching and writing down what the drugs did to his perception. In 1964 he worked with director Eric Duvivier to turn those experiments into a short film, using superimposed drawings, distorted color, and rhythmic editing to approximate the visual disturbances Michaux described in his own accounts of intoxication. A French narrator reads from his writing over the images, describing the fracturing of shapes, the pulsing colors, and the loss of a stable visual field that mescaline produced for him. The film treats the drug experience as something to be studied and rendered rather than glorified, closer to a visual essay than a warning or an endorsement. It sits at the intersection of Michaux's poetry and psychiatric interest in hallucinogens during the same period researchers like Aldous Huxley were writing about mescaline. No French is required to follow it; the images carry the argument on their own.