A trashy, genre-crossing mess that tells the story of a Russian refugee werewolf who is engaged in a battle against the Nazis while also having sex. I happened to read this during my early teens. At that time, I thought it was rather pervy. However, in hindsight, I'm certain that when compared to a great many later "paranormal" novels, it would seem quite mild.
The concept of a werewolf fighting Nazis is an interesting one, although the way it was executed in this particular piece might not have been the most refined. The addition of the sexual element perhaps added a certain level of shock value at the time, but it also detracted from what could have been a more engaging and serious narrative.
Nevertheless, it's important to note that our perspectives change as we grow older and are exposed to a wider range of literature. What might have seemed scandalous or inappropriate in our youth can often appear relatively tame in comparison to the more extreme and diverse offerings that come along later.