1. The Scene of the Incident
It all began when Alex Pretti, a young businessman at the peak of his career, was found dead in the private library of his high-walled mansion. The scene was perfectly clean: no signs of forced entry, no struggle, and a half-finished glass of red wine on his desk. Initially, the police leaned towards the hypothesis of a stroke due to overwork.

2. The Turning Point from the Forensic Room
As investigators were preparing to close the case, the autopsy results changed everything. The “strange compound” found was not a common drug but an extremely rare, odorless, tasteless derivative capable of causing sudden cardiac arrest without leaving any obvious traces with only preliminary testing.

The Fateful Timing: This substance entered the bloodstream only about 3 hours before Alex’s death.

The Clue: The amount of poison was meticulously calculated to act precisely when Alex was alone. 3. The Suspects The appearance of the poison turned everyone present at the dinner party that night into a suspect: The young wife (Elena): The heiress to the enormous fortune, yet strangely calm in the face of her husband’s death. The associate (Marcus): The man Alex had just discovered secretly embezzling company funds. The personal physician: The only person with the expertise to prepare and access this sophisticated chemical. 4. The Final Twist Security cameras showed that during that “prime time,” only one person entered the library to give Alex a stack of documents. However, the image of that person was distorted by a high-tech device, causing the investigation to reach a suffocating deadlock.