The geologist Dr. Girard, along with his son Mathieu, visits a small town in the Swiss Midlands. The reason for their visit is the bold thesis that the town is built on the site of a long-erased meteorite crater. If Girard can prove his thesis, nothing would stand in the way of his brilliant scientific ascent. The town's dignitaries, to whom he presents his project, react differently to Girard's visit and draw him into the whirlpool of their disputes and intrigues. While the mayor hopes for new tourism development opportunities, the curator of the art museum sees it as unwanted financial complications, and a wealthy widow fights with all her might against the encroachment of science. Mysterious events unfold, drawing Girard deeper into the crater, which holds a magical secret.