Sébastien is a former rugby player and a true colossus. Between the ages of 12 to 16, he was a victim of rape by a beloved relative. Thirty years later, he has failed to speak out. After he meets a little colossus like him, he is compelled to make the right choice.

The body of a shady businessman is found on the jetty in the port of Toga, in Bastia. The investigation, Commander Gabrielle Monti's first since returning to the country, begins on a tightrope between the past and the present.