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.

Marianne, a young cellist discovers that her father had a mistress who is still alive. Her journey to find this mysterious woman takes her to places and people from her childhood that she thought she'd left behind forever.

Stumbling across an uncompleted 1939 film called "Princess Marushka", filmmaker Sam becomes intrigued with the young actor Sylvain Marceau, who last appeared in the film. Hoping to discover the mystery behind Sylvain's disappearance, Sam decides to make a documentary and sets off to interview those who knew Sylvain, including elderly Lisa Morain. Through her interview, Sam learns the story of Lisa and Sylvain's doomed love affair on the eve of World War II.