Chief Inspector Bruno Schumann, known as "The Criminalist," works at the Berlin State Office of Criminal Investigation, solving complex and unresolved cases. Together with his dedicated colleagues, including Henry Weber, Anne Vogt, Max Winter, and Alex Keller, Schumann operates in the heart of Berlin. While facing pressure from Prosecutor Lara Solovjev to close cases quickly, he must also manage the personal complications of her growing interest in him, all while pursuing justice in the city's criminal underworld.