Stefan Dobrin was trained the hard way in absolute secrecy in order to turn into the perfect lethal machine. He never succumbed to his trainers’ illicit causes, that’s why he and his brother were neutralised. Today, Stefan, merciless and relentless, emerges from his ashes, and comes back to get his own back. He unexpectedly crosses paths with Zana, a woman with a shady past who, in her attempt to keep to the straight and narrow, finds herself in the middle of a fierce battle. They are both forced to blaze a gory trail to the end of the circle, teetering on an invisible thread full of contradictions and dangers. In a frenzied course from Athens to America to the Carpathian Mountains, life does battle with death, light with darkness, insanity with reason, hatred with love. As the hunters keep swapping places with their prey, love seeks a way to become the magic key. Will the thread hold out, or will it come undone, as the monsters keep roaring?