Donna Leon: Endstation Venedig

SINOSSI

US Army sergeant Michael Foster, a health inspector from the nearby Vicenza NATO base, is stabbed and dumped in Venice's Canale Grande, no robbery since cocaine was left on him. The US liaison, Captain Peters, hides she was intimate with Foster. The police chief only cares for PR and high society, so when shady Milanese businessman Viscardis's apartment is robbed of paintings, commissario Guido Brunetti is ordered to make that his priority instead. However he finds more past and new crimes, and connects them.