In Limoges, the porcelain capital of France, a factory worker is found dead with a porcelain spike driven through his chest. The investigation is assigned to Captain Paul Artuis, newly transferred from Lyon, and Commander Estelle Meyer, a local native. Blending humor and tradition, the duo delves into the secrets of the Langedamont workshops, where Estelle must also confront her own father, the owner. Their investigation leads them to an old art theft, uncovering a web of family grudges and buried secrets where past and present intertwine.