A young woman tries to ease herself out of the closet without terrifying her parents in the process in this comedy-drama. The year is 1969, and Sacha (Marie Bunel) is a young Belgian woman living in Canada. Sacha's family sent her to Canada to attend medical school, but she hasn't had the heart to tell them that she's dropped out of college to devote herself to her new interest in photography. Sacha also hasn't told her parents that she's a lesbian -- and that she has a new girlfriend, Odile (Macha Grenon). Odile is tired of being kept a secret, and insists that Sacha tell her parents the truth before American astronauts land on the moon in a few months -- or else. Sacha flies home to Belgium for a visit, planning to come clean to her folks, but she discovers they've arranged a huge welcome home party for the entire neighborhood. With everyone so excited that the soon-to-be-doctor is paying them a visit, Sacha wonders when the time will be right to give her family the news. Not that it will be easy to explain things to them anyway: Mother (Helene Vincent) is high-strung and suffering from cancer, Father (Christian Grahay) is the owner of a business about to go bust, sister Elisa (Mimie Mathy) is an embittered midget who talks to her goldfish, and her grandmother (Tsilla Chelton) has a few secrets of her own that she isn't sharing. Que Faisaient Les Femmes Pendant Que L'Homme Marchait Sur La Lune? was the first feature directed by Chris Vander Stappen), who won acclaim for the screenplay to Ma Vie en Rose.