Mathieu Grégoire is an esteemed author who lives in Spa with his wife and daughter and leads a carefully structured life. One day, while out in the desolate landscape of the High Fens he meets a mysterious woman whom he calls 'Belle'. An obsessive passion is kindled in Mathieu and in a short space of time he loses all control over his existence.

Based on the title character, a World Health Organisation (WHO) doctor and martial arts expert who fights bad guys, created in 1970 by scriptwriter Jean Ollivier and artist Carlo Marcello for "Pif Gadget", a weekly kids' comic book magazine in France.

This is a film which was made in Belgium in the early '60s and was never released. However, it somehow got included in the American Oscar category for "Best Foreign Film," and was finally released in its home country in 1971. It explores the issues of prejudice and superstition in the Belgian countryside through the troubles of a middle-aged farmer whose mother has been accused of being a witch. In French, this picture is based on a true story which took place in the late 1920s and early '30s.

While at a bullfight Simona begins flashing back to a torrid sexual relationship she had with George. Her relationship with George was one of open sexual discoveries which eventually led to revenge and murder.