The story is about a lighthouse keeper and his wife who are forced to move to the Thevennec Lighthouse, located on an island in the open ocean, due to harassment at the lighthouse keeper's previous place of work. The situation at the lighthouse and a series of tragic incidents lead the heroes to madness and further death. “And she also saw how the sun rose and hid behind the horizon again, illuminating the gray veil of clouds, passing in endless hordes over a barren piece of land. Giving way to dim days, nights fell on the heaving ocean. Huge amounts of water poured out onto the tormented stone, scattering in millions of splashes, shaking to the foundations, an island standing alone in the watery desert. And above all this is the silent gap of eternity...”