My job is to cover the tracks, so fiction can destroy reality, says novelist Sandra Voyter, not directly, but in a quote attributed to her by the presenter of a TV literary program. The context is significant because Sandra, played by German actress Sandra Huller, is on trial for the murder of her husband, Samuel (Samuel Theis), who was found dead in front of the family home, near Grenoble in the French Alps, having fallen from a third-floor window.