Diane is a devoted friend and caretaker, particularly to her drug-addicted son. But as those around her begin to drift away in the last quarter of her life, she is left to reckon with past choices and long-dormant memories.

Filmmakers discuss the legacy of Alfred Hitchcock and the book “Hitchcock/Truffaut” (“Le cinéma selon Hitchcock”), written by François Truffaut and published in 1966.