orologio en Altadefinizione. The publicist Claudio and the housewife and choral teacher Helena have been married for many years, but they do not understand and respect the feelings and view point of the partner. Claudio sees Helena as a shopper and "little teacher of a choral" and Helena sees Claudio as an insensitive and rough man. On the night before the fiftieth anniversary of Claudio, they changed places with each other.