Commissioner Aurelio Zen faces a mystery: a quadruple murder in the fortress-like villa of a wealthy Sardinian, where no one can enter unnoticed. An impossibility? The corpses tell a different story. The bloody act is immortalized, as it was the custom of the host Oscar Burolo to record his life on video – now the footage documents his death. As Aurelio Zen begins his investigation in Sardinia, he finds himself in a brutal, unwelcoming world.