Only Eva can save France. But who are her allies? And who are her enemies? From a Parisian cafe she follows a messenger right into a blast at a railway station. Is it a trap? And what do the messenger's dying words mean? 

From a Parisian café with a surly waiter, Eva runs after a mysterious contact and ends up in the chaotic aftermath of an explosion. Has someone tried to kill her? Instead of sipping her espresso in peace, she finds herself facing danger. She gets mixed up in a world of  mysterious codes and a race against time. The messenger... le messager...has told her the first clues for her assignment...aisle a, row 2… and a number code 1-8-5-2. She's the only person who can save France from a disaster.