Gianni is reunited with Paolo, the 15-year-old son he has never seen; a son he abandoned at birth. The reunion is not Gianniâs idea â it is that of Paoloâs doctor who hopes the connection will benefit the troubled boy. Gianni experiences a Pandoraâs box in Paolo, full of shocks and wonders, but the keys to oneâs house are often the keys to oneâs heart.