In Gela, a town on the southern coast of Sicily, soldier Roberto and nurse Stefania are deeply in love. They decide to get married. Their life unfolds normally until Roberto dies from a bomb in Iraq. Devastated, Stefania decides to visit the site to figure out what really happened. She joins Smile, a medical group offering healthcare to children, and presents herself as a doctor. She is determined to find the man who murdered her husband. Expecting to find enemies, she finds instead people who are asking the same social and political questions that are being posed in the west -- about health, the environment, poverty. Her vision of the world changes and so does her mission in life.