Blanca Ferrando is a young woman who became blind at the age of twelve, due to a dramatic fire in which her older sister Beatrice died and which was caused by her violent boyfriend, Sebastian. This tragedy made her develop a very strong sense of justice to the point of pushing her to join the police. Blanca is helped by her most trusted friends: her guide dog Linneo, a female bulldog who protects and comforts her in the most difficult moments, and her beautician friend, Stella. After overcoming her work challenges, she finds herself facing sentimental ones: torn between two men, Inspector Michele Liguori, a man of many secrets, and Nanni, a young cook.

On July 19–21, 2001, over 200,000 people took to the streets of Genoa to protest against the ongoing G8 summit. Anti-globalization activists clashed with the police, with 23-year-old protester Carlo Giuliani shot dead after confronting a police vehicle. In the aftermath, the police organized a night raid on the Diaz high school, where around a hundred people between unarmed protesters—mostly students—and independent reporters who documented the police brutality during the protests had took shelter. What happened next was called by Amnesty International "the most serious breach of civil liberties in a democratic Western country since World War II."