In the heart of Paris, a detective from the criminal brigade, known for his unconventional methods and intense character, faces a case that could lead him to the brink of the abyss. One day, after a long and exhausting shift, he encounters a stranger who offers him a job he could never have imagined, even in his worst nightmares: to catch a serial killer who is terrorizing the city. The tension escalates when the detective discovers that his hunting methods have stretched him to the limit, and things get even more complicated when, amid his investigation, he develops a tumultuous relationship with a femme fatale, who plays a mysterious role in the plot.
The line between duty and desire begins to blur, and the secrets hidden in the shadows of the French capital come to light. As he plunges into a dangerous game of power with criminals, the detective realizes that he is not only pursuing a monster but also facing his own internal demons. The story turns into a torrent of action, seduction, and betrayal where loyalties are tested, and decisions are made in the blink of an eye. With a thrilling climax and unexpected twists, the plot reveals the dark reality of the criminal mind, and the detective will be forced to confront his own morality in a game where losing is a lethal option.