A young man driving through an unnamed French city chances upon a startled girl in a nightdress. To say she's confused is an understatement, as she asks for help, forgets about asking for help, forgets about where she is, what her name is, and general seems to have her mind wiped completely clean. The young man drives her back to his house, unheeding of the other girl left behind in the woods.

The rescued girl is called Elisabeth, but that's about all she remembers. Our young man, Robert, settles her down in is home, not knowing that some mysterious people have followed them there in a car. After a morally dubious, lengthy sex session with Elisabeth, Robert sets off for work only for a doctor and nurse to appear and take Elisabeth 'home', which turns out to be a huge monolithic black tower.

By the time Elisabeth has forgotten all about Robert, and is taken back to what she's told is her room, where a similarly stricken girl called Catherine lives. Elisabeth, as far as she can perceive, realises that everyone in the tower block is like her, with the exception of a rape happy orderly, the doctor, and those armed guards stopping anyone from leaving. There's also Veronique, who turns out to be the girl who tried to escape with Elisabeth at the start of the film.

The question is, why is Elisabeth there and what is the purpose of the doctor and his minions? Don't expect a custard pie fight and a sing-a-long at end of this one as the film descends into gory murders and suicides, gun fights, and another escape attempts due to Elisabeth finding Robert's phone number in her pocket (she doesn't remember him of course, but he remembers her!).

Between this and The Grapes of Death, I cannot believe that Jean Rollin was the man responsible for the terrible Zombie Lake. Both Grape and this are short on plot but high in atmosphere, and this one, although not exactly a pulse-racing action fest, is fascinating as a mystery and a grim modern horror. The clinical interiors of the black tower just add to the unease, as does the brutal violence that comes out of nowhere.

This being a Jean Rollin film, and a French film, every lady in this one gets naked. This is why I love tracking down all these films, there's always one or two that come out of nowhere and surprise.

I've never made to the end of Zombie Lake, but I'm going to give it another go.