Documentary about the promises and dangers of using biotecnologies in Medicine. Are shown some controversial cases such as the children iperactivity thatt depends today not on environmental cases but on genetic ones, the discovery of tebagism and homosexuality genes. The problem is underlined by Jeremy Rifkin: he accuses the patentes on genes and the following growing up of a new type of eugenetic??, not anymore determined by politic and racial terms, but simply on an economic base. The images of a demostration for the public sanitary assistance close concretly the video.