Retired security consultant Robert Frank accompanies his daughter, reporter Claudia, to a prestigious exposition of Venetian glass organized by her mother, his ex Louise Berengo, and her second husband Antonio. At the grand opening, thieves sabotage the alarm and stage a blackout to inadvertently switch a paste copy with the signature medieval masterpiece beaker. Claudia gets Robert to put his expertise to use and attempt retrieving it before a scandal ruins Louise's reputation, putting off informing insurance and authorities. Present was the prime suspect: Louise's arch-rival, antiques and art merchant Boris Jetrowitsch, whom he overhears offering a rare piece to leading Venetian collector Anna Cantonelli. Robert has a crush on local restaurant owner Mia and Claudia on her son Marco, who catered the opening and is devoted to his angelic but seriously ill boy Luca. Robert fails to deliver an anonymously demanded 100.000 Euro ransom, but finds out the annoying truth.