Schulz & Schulz II: Aller Anfang ist schwer(1991)

The Berlin Wall has fallen. Walter Schulz travels to Hamburg with his wife Marlene and their children Dorothee and Alexander. Here, his brother Wolfgang tells him that he wants to help him set up a company. While Walter is overwhelmed by Wolfgang, his former boss Günther tries to accuse him of having a past with the Stasi.