Watch full movie online. One of the series of labodoble experiments of the natural (organic) film developers. The structure of the film is based on the chemical formula of the Rhus Typhina's developer. The main protagonist of the film is a species of flowering plant in the family Anacardiaceae which leaves and berries have been mixed with tobacco and other herbs and smoked by Native American tribes. We tried to apply the properties of the Rhus Typhina in the photochemistry. The film catches the research, experiments, harvesting and preparation of the film developer in which latter original negative was developed.