Fatal Remedies by Donna Leon

A sudden act of vandalism had just been committed in the chill Venetian dawn. But Commissario Guido Brunetti soon finds out that the perpetrator is no petty criminal. For the culprit waiting to be apprehended at the scene of the crime is none other than Paola Brunetti, his wife.

As Paola's actions provoke a crisis in the Brunetti household, Brunetti himself is under increasing pressure at work: a daring robbery with Mafia connections is linked to a suspicious death and his superiors need quick results. As his professional and personal lives clash, Brunetti's own career is under threat - and the conspiracy which Paola had risked everything to expose draws him inexorably to the brink ...