Claire's Knee (1970)

Plot

Just before his wedding, a seasoned diplomat finds himself on vacation by Lake Annecy, where he reconnects with an old friend, potentially an ex-lover. This encounter introduces him to her passionate teenage daughter, Laura, who tries to engage him romantically. However, his attention is soon captivated by her older sister, Claire. As Laura flirts with him, he becomes increasingly obsessed with the idea of touching Claire's knee, leading to a conflict between his desires and impending nuptials.