Late autumn 1964. An old boat under the command of an experienced captain delivers Jose Williams to a gloomy island located in the middle of a choppy sea. On this soulless rock, washed on all sides by high waves, he will spend the next six months as a lighthouse keeper. On the shore, Jose meets the previous lighthouse keeper, who gloomily advises him not to leave the lighthouse under any circumstances after sunset, always prop up the front door with a heavy cabinet and never part with his gun, and then hurriedly climbs onto the boat, wanting to leave this as soon as possible bad place.