Professor Hamilton, a naive Nuclear scientist who once thought bombs were good for humanity, realizes his mistake and runs away from his inventions. He hides in Calabuch, a beautiful seaside town where people still believe in humor and friendship.

Eugenio Jalon is a young confident and of good character who has never left her village, Segovia, and thinks that life is wonderful.

Paolo Anselmi is a happily single man. He lives in a flat with a friend but is forced to leave when the friend gets married. He then goes to a boarding house where he flirts with a girl but ditches her when she proposes marriage. When he goes and visits his mother he finds out that she is also trying to find the right girl for him. Is he going to surrender this time?

The famous singer Carlos Ojeda has come to Seville to hire some Spanish figure to accompany him on the show to be presented in Mexico. Negotiations with Dorita, The Cadiz, fail and Carlos is about to return to empty when discovered Reyes, selling beautiful flowers with a magnificent voice.