Having just arrived at his new post at the Athens homicide division, Chief Inspector Max Richter is immediately called to duty: a young musician has been found shot dead in her apartment. Together with his Greek colleague Petros Makropoulos, he immediately begins the investigation. The two are initially very skeptical of each other, but together they manage to identify a suspect. However, the more information they uncover, the more obscure the case becomes, and they soon find themselves in the middle of a transnational corruption scandal.

Kostis has just made his first big professional step opening their own barbershop with his best friend Thanos in the heart of Athens. Every night a sweet melody is heard from the neighborhood. Kostis believes it's a mysterious girl you can fall in love with, by the sound of her voice. The story becomes even more intriguing when Kostis finds a chocolate bar with a hidden message on the Barber's door.