Tirant partie des informations d'un indic, le service des affaires criminelles découvre un cercueil enterré en plein milieu d'un jardin d'enfants. C'est le premier meurtre de ce type auquel est confronté Behzat C, un expert du département des homicides. A mesure que son enquête progresse, Behzat C va faire la découverte d'une branche corrompue des services de police, une organisation qui, par tous les moyens, va tenter d'étouffer l'affaire. Maintenant, Behazt C n'est plus seulement à la poursuite du brillant et mystérieux tueur « Red Kit », mais il doit aussi faire face à une branche pourrie de la police.

A massive explosion rips though a busy street in Istanbul, Turkey. 95 people are dead; 30 Americans and 5 British. The massacre sends shock waves from Turkey to London and Washington, DC. A new terrorist organization is behind the attack. The explosion is just the beginning. Labyrinth' is the code name of the operation conducted by Turkish intelligence to stop a second, more devastating attack that will plunge Turkey, the only democratic Muslim country in the region, into chaos and destroy the fragile balance of the Middle East. After the initial attack, Turkey becomes a battlefront for terrorists and Turkish, British and American intelligence officers. Everyone has his own agenda in the fight that stretches from Istanbul to Eastern Turkey and from Frankfurt to Northern Iraq.