In the house to Commissioner Brunetti is a certain Franco Rossi , Official of the Cadastral Department of the Municipality of Venice , It explains ,. The Commissioner's Office , built over a 15th-century building, will be removed, unless documents are found more than half a century ago, allowing the redevelopment of this architectural monument. A few months later, the same Franco Rossi calls the Commissioner from a mobile phone with the intention of telling him something very secret, but the connection is broken, and the next day officials are found under the construction forests of a restored building with severe injuries, from which he dies. Brunetti undertakes to investigate a strange death, but without friends at the top, he still can not do ...