An adaptation of the Icelandic ghost story of "The Deacon of Dark River", set in 1970s France.

In the year 1940 when there were British forces in Iceland, a country boy goes to Reyjavik to work for the army. He also wants to know what became of his childhood sweetheart. He soon discovers that she's having an affair with a British soldier. Moreover, he starts to suspect that the soldier, instead of being an officer and a gentleman, is in fact a very peculiar kind of monster.