Piano music echoes through the night, but the seat at the grand piano is empty. The "Dreams of Love" play from the tape recorder. Why? Where is Hartwig Schramm, who diligently practices the "Dreams of Love" every day? This is what Chief Inspector Ingo Schell wonders as he investigates the murder of Hartwig's wife. His wife Romy, who has just opened a private detective agency called "Romy Schell discreet and fast!", is also pondering this. Boldly, she involves herself in the police investigation, of course against her husband's wishes, but supported by the attractive lawyer Maximilian Schneider. Her inquiries uncover an incredible secret.