A suspicious accident draws Brunetti into Venice's underworld - with unintended, disturbing consequences...

When important information is leaked from inside the Venetian Questura, Commissario Guido Brunetti is entrusted with the task of uncovering which of his colleagues is responsible. But before Brunetti can begin his investigation, he is surprised by the appearance in his office of a friend of his wife's, who is fearful that her son is using drugs. A few weeks later, Tullio Gasparini, ...