The theme of the film is the dialectic of light and darkness and their various manifestations. In 2006, Milan and Tomasz, two Czech electrification experts, traveled to the remote village of Masuku in Zambia to provide electricity to a local hospital building. Four years later, they return there to find out why the system failed and are about to make repairs. While studying faults, they experience a whole series of "short circuits" in the form of a mixture of different worlds, a chaotic fusion of cultures and rituals of all kinds. But Czech guys with "golden hands" are ready to work in any conditions, trying to transfer their technologies and experience to Africans.