This film, very much of its time shows London in the early 1970's. Of course now a different world. Note the old fashion Underground ticket machines, and the Black and White Telly in the flat. The location looks very much like Churchill Gardens, Pimlico, with Battersea Power Station in the background. And, plenty of smoking going on, in pubs, and on the tube. The film is strangely sexy in its own way, with the young girl playing along with the much older man, its really a sexual fantasy come true. It is another one of those British low budget film where the low budget adds to rather that take away value. Watch for fun, which is what it is.在走了接近两个多小时后，穿过周围压抑浓郁的重重雾气，在视野范围一米以外几乎都辨认不清的状况下，四个人终于发现到前方的雾气，开始渐渐变薄起来，在那逐渐减淡的雾中，他们要寻找的裂谷带，也显露出了它的真面目。