What Is Love?(2006)

Original title: Quale amore

A young man, Andrea, from the bourgeoisie of Lugano, with power in high finance, falls in love with a beautiful pianist, Antonia. Antonia leaves his fabulous career for the love she feels for him. Soon the beautiful women leads him in a growing state of jealousy which leads to a murderous obsession. The young man tells his passion to an unknown, in an airport while waiting for a flight.