Tell No One (2006)

Cast: François Cluzet, Marie-Josée Croze, André Dussollier, Kristin Scott Thomas, François Berléand, Nathalie Baye, Jean Rochefort, Guillaume Canet, Gilles Lellouche, Marina Hands

A man receives a mysterious email appearing to be from his wife, who was murdered years earlier. As he frantically tries to find out whether she's alive, he finds himself being implicated in her death…