We find ourselves in the Norwegian Broadcasting Company's radio studio for the program Nitimen. Kjell Tue sits as always by the microphone, and in the control room is Totto Osvold. Bank Manager Hugo Oswald is due to be interviewed live on the air, but suddenly dies in his chair, poisoned on live air. Police Investigator Helmer and Sigurdson is put on the case. Pensioner Borckmann, the bank managers neighbor, also involves himself in the investigation.