The improvised spy, Jaime Bonet, must go to Barcelona to recover a stolen microfilm which is hidden in a soccer ball.

Andres and Luis are two young taxi drivers eager to succeed. The first one sings and the other composes songs, and together they intend to record an album to finally jump to fame. They have it all planned. Taking advantage of a visit to the city of the famous singer Silvia, Luis tries to gain the confidence of her manager and, in this way, be directly launched to fame.