ThetragiclovestorybetweenGuido,theownerofamarblequarryandLuisa,thehumbledaughterofoneofhisemployees,endsupinhergivingbirthtoababyboy.Giulio'smotherisagainstthem:atfirstshetakeshersonabroadwithanexcuseandthenhashergrandsonkidnappedmakingLuisathinktheboydiedinafire.