On the Caribbean island of Martinique, in the middle of the tropics, several mysterious murders occur. Now it is up to the two investigators Mélissa Sainte-Rose and Gaëlle Crivelli to solve the case - even if the two women have very different views of law.

In the 60s, the Government encourages Islanders to leave the French West Indies to escape poverty that results from the closure of sugar mills. Lured by the idea of a "dream country", they find life in Europe is not what they had imagined.

In the future the Empire of Mortemonde has enslaved almost all nations on Earth. Each month everyone is forced to play the virtual reality computer game Battledream. Only those who reach a score of 1000 points are allowed to live one more month. And on top of that you can also really die in the game. Impenetrable firewalls make sure that nobody can cheat or break the codes. Syanna Meridian, a fearless young slave, decides to fight this inhuman system, together with her devoted friend Alytha Mercuri. There’s only one free nation left on the planet, Sablereve, but its leaders prefer to run rather than to fight. It’s up to Syanna to convince them to join her, but to achieve that she has to win one final game against the best players of Mortemonde, Isaac Ravengorn and Alexander Torquemada.