One of them , Barbara , in the morning is found dead in his bed .
Marc , who shares a remote mountain chalet with his sister , teaches literature at the polytechnic beside the lake in Lausanne and can not resist his female students .
One of them , Barbara , in the morning is found dead in Marc 's bed .
Marc , who shares a remote mountain chalet with his sister , teaches literature at the polytechnic beside the lake in Lausanne and can not resist his female students .