Vincent, who signs his blows with the name Romeo, manages to steal the Mona Lisa. In his escape involving Nicole and both chased by the police, they escape to Italy. There, in love with each other, they are associated with criminal intent signing his punches as Romeo and Juliet.

Roméo and Juliette are two young actors. They fall in love at first sight, move in together and make a baby. A love story and the founding of a home like millions of others. Except that their little boy, Adam, behaves abnormally. The young parents try hard to persuade themselves that everything is okay but, with the passing of time, they cannot delude themselves anymore : their son has a problem. Their fears are unfortunately confirmed : Adam suffers from a malignant brain tumor. From now on, war is declared. A war against illness. A war against Death. A war against despair.

In a french lost village an old woman is killed and her savings stolen. Several members of her family, all called:"Goupi-…", are suspected.