Voir sur FrenchStream. A group of indispensable works in the Ruhr area on the development of a solar power plant. At first she only finds attention through a former KGB agent who believes that the struggle of the political systems is further fought in the hidden. His views are initially smiled at, but when a young spy causes confusion, there is a feeling of happiness: the apparent paranoia of the Russian friend has tangible causes, and the work of the group is more than just evident.