Wood for coffins is built on a deliberate plot. A man is found dead in a workshop of a sawmill in the Jura, head and hands crushed by a press. A true carnage. This is the director of the sawmill, a former officer who made the war in Algeria, not very liked executives and workers. Local police quickly concluded the accident. But an anonymous letter to the prosecutor expressing doubts led the prosecution to entrust further investigation to the police. A commissioner and an inspector is dispatched to the scene. This is a new mystery of the closed room: it is the director died recklessly, or are we murdered? Many had strong grievances against him. But how do we have the murder while the local was closed on all sides? His superior being bedridden, the young police inspector will conduct the investigation step by step and find a strange truth. He has talent in this detective novel: engaging characters, rendering a deep France disappearing as the factory in difficulties, specific technical knowledge of woodworking, careful investigation, good times, a surprising end. But there is still something missing to make it a great detective novel; the text is too didactic, feelings and thoughts are announced too slowly or too explicit. As was very well written Jacqueline de Romilly, literature wins the recount, so every moment suggest hidden depths in simplicity, according to the ideal which requires words to be like the iceberg that suggests a invisible continent so as to leave the reader's imagination to get to his own impressions and conclusions.