Paolo, a special guest of an Italian newspaper, leaves for Paris to attend an international conference, a summit meeting, the 'summit' of hope. He subordinates all his interests - work, the newspaper, friends - to the urgent task of winning back Annie, with whom he had previously had an affair.

Gian Maria Volonté
as Paolo

Mireille Darc
as Annie

Olga Georges-Picot
as Agathe

Giampiero Albertini
as Berto

Erika Blanc
as Olga

Carlo De Mejo
as Ulrich

Antonietta Fiorito
as