Helga Gunkel and Flora Gutiérrez, the first women of the Chilean police, are on the trail of a criminal who has returned for revenge on Kerren, a small southern town.
To obtain the monopoly of fruit production, don Juanito installs on his childhood village, an eternal sun that allows him to cultivate day and "night". It creates a green fertilizing smoke that affects the health of the inhabitants, provoking a workers' revolt that destroys all his facilities. The ruined old man, on the verge of madness, looks again at the fruit trees with the eyes of his childhood.