In Brussels, the corpses of young women were discovered buried behind the graves of collectors of paintings. Each of them lacks the right forearm.

In Brussels, we discover the corpses of young women, buried behind the graves of famous painters - Each of them is missing the right forearm. One thing leading to another, Commissioner Léon, whose secret passion is knitting, untangles the intrigues of this dark story, with Madame Édouard, the travel housewife of the bistro "À la Mort Subite", where the we meet a colorful fauna.