María and Susana, two rebellious teenagers, spend the summer in a catholic camp. While they are grounded during a weekend, the most unexpected arrival in the most unexpected way will change their feelings about life, love and freedom.

"El Florido Pensil" is a humorous reflection of the education of several generations of Spaniards from the 1940s to the 1960s. Based on the book of the same name by Andrés Sopeña, it evokes, from the present, his memories of that time: everyday school, local radio, Roberto Alcázar's comics, Thursday cinema with Franco opening swamps and "Yon Güein" chasing and killing Indians. Through the childish eyes of a child Sopeña (Daniel Rubio) and his schoolmates, we discover a way of understanding the world, society and a Spain "of glories and flowery pensil", as the national anthem of those years used to sing.

Spain, 1939. In the last days of the Spanish Civil War, the young Carlos arrives at the Santa Lucía orphanage, where he will make friends and enemies as he follows the quiet footsteps of a mysterious presence eager for revenge.

Hugo has lost the love of his life and he intends to get her back by learning to play the piano for a year. Nerea, his neighbor, will be the one to help him achieve it by giving piano lessons.