Philipp Gerber is a smart, but self-satisfied car salesman. In an inattentive moment at the wheel of his car, he runs over a boy on a bike and, instead of helping him, he drives away. As he has feelings of guilt, he tries to find out more about the accident’s victim.

75-year-old Giuseppe De Metrio has spent 30 years in Geneva, as foreign worker for the Broyer company. Upon retirement, he returned to Puglia, Italy, where his family had continued to live. His only grandchild, 7-year-old Carla, is blind. The whole family looks forward hopefully to the day when Carla's sight can be restored by means of a cornea transplantation. After a heart attack, Giuseppe decides to wait no longer and returns to Switzerland to ask his former boss Mr. Broyer for the money necessary for the operation, as an old promise binds the two men. Intended as a 48-hour trip, Giuseppe and Carla's visit in Switzerland becomes a journey that both grandfather and granddaughter never dreamt of...