This is one of those Swedish films that is only currently available in its native dialogue, so I had to rely on the bizarre visuals (and written plot synopses from bilingual Swedes) to try to fathom exactly what the hell is going on. A woman (Anita Sanders),who apparently was in some kind of institution, returns home with her husband to her friend/maid (Solveig Anderson). The younger woman, however, is now practicing witchcraft. She wreaks all kinds of strange havoc with voodoo dolls and then uses her powers to seduce BOTH the religious husband and the neurotic wife. It all ends--as these things inevitably do--in a long satanic orgy.
This movie is interesting mainly for the two lead actresses and the director, Torgny Wickman. Solveig Anderson would probably be a lot more well known in Swedish erotica of that era if only she had not appeared in all her English-friendly films (i.e. "Swedish Wildcats", "Thriller", "Wide Open") with Christina Lindberg, who made even this Swedish beauty seem pretty ordinary-looking by comparison. Anita Sanders, on the other hand, was mainly active in Italian exploitation flicks. She appeared in the early Tinto Brass interracial-sex film "Nerosubianco (Attraction)" and she played former Miss Teen Italy Gloria Guida's ridiculously young-looking mother in "Quella Eta Malizia". Free from the erotic shadows of Christine Lindbeg and Gloria Guida respectively, these two do manage to generate quite a bit of heat together (which might explain why they're wandering around out in the snow wearing short miniskirts in one scene).
Torgny Wickman is most famous for his "Language of Love" sex documentaries, which broke a lot of barriers in their day, but seem pretty quaint today. His fictional film "Anita" with Christina Lindberg as a crazed nymphomaniac has gotten a legitimate English-language release and quite a bit of attention recently, but his earlier study of teenage nymphomania, "Eva, the Half Virgin" (with Anderson in the title role) has so far been neglected. As a Swedish horror film, this certainly won't make anybody forget about "Let the Right One", but as an EROTIC horror film it certainly works alright.