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.

A beautiful widow is determined to uncover the facts behind her husband's death.

A passionate affair set against the intense encounter between a film-maker and a novelist. The story begins with young scriptwriter François tracking down the author of a once-scandalous novel. His aim is to adapt the work for the screen but several elements of the novel he finds difficult to comprehend. The author, Jeanne, is initially cautious of relaying information, insisting the presumably autobiographical book in no way relates to her personal life. However, eventually she takes the man into confidence to tell the background of Benvenuta.

The Inquisition is in full swing in 16th century Flanders. Wanted for his dissident writings, the alchemist doctor Zeno has been wandering Europe under an assumed name for twenty years. But he remains a non-conformist. He returns to his native Bruges, where he thinks he has been forgotten. In this silent labyrinth where the faces of the past resurface, he rediscovers his identity and thus signs his death warrant.