
Moser’s empathy for the grieving dog leads him to "unofficially" adopt Rex to save him from being put down or retired early. The bond is cemented when Rex uncovers a crucial clue that helps Moser solve the original bombing case. This partnership redefined the procedural genre, blending gritty crime-solving with a unique "man-dog" chemistry that became the show's signature. Tobias Moretti
In the aftermath, Rex is consumed by grief, refusing to eat or drink. Enter (played by Tobias Moretti), a rugged detective dealing with his own life's upheaval—a bitter divorce that has left his apartment empty of furniture. Forming the Partnership
The story opens with a high-stakes investigation into a bombing suspect in Vienna. The chase leads to a rooftop confrontation where Michael, a police dog handler, is tragically shot and killed. His canine partner, Rex (a German Shepherd whose full registered name is Reginald von Ravenhorst), is left devastated.