The video provides information about the risks associated with the handling of dangerous substances. First, it describes the physicochemical properties of chemical substances and their labels. The next part shows a situation in which there is accidental exposure to chemicals and the effects it has on workers. In particular, work with carcinogenic substances is mentioned. The importance of risk assessment is highlighted and prevention, including organisational, technical and personal protection measures, is discussed. The video shows real workplace situations in the chemical industry. It is an awareness-raising but also an informative video.