Résumé : At the National Security Agency, the incredible happens. Translir, the powerful decryption computer, fails to decipher a new code. Called to the rescue, Susan Fletcher, the beautiful and brilliant chief cryptanalyst, understands that a terrible threat is weighing on all levels of power. NSA is being held hostage by the inventor of tamper-proof encryption that, if released on the market, would shatter the entire American intelligence system! Carried away in a whirlwind of secrets and pretenses, Susan fights to protect her country and get the agency out of this trap. Soon betrayed by all, she will have to defend her own life and that of the man she loves.