Confidentially Yours (French: Vivement dimanche !; known as Finally, Sunday! in other English-speaking markets) is a 1983 French comedy mystery film directed by François Truffaut. Based on the 1962 novel The Long Saturday Night by American author Charles Williams, it tells the story of Julien Vercel (Jean-Louis Trintignant), an estate agent who is suspected of murdering his wife and her lover. As Vercel is hidden in his office, his secretary Barbara Becker (Fanny Ardant) investigates these suspicious murders. It was the last film directed by Truffaut before his death in October of the following year. The film had a total of 1,176,425 admissions in France and was the 39th highest-grossing film of the year.