All the orphans who adore Grimmer try to prove his innocence. They find the blonde woman (Johan, disguised as Anna) who was at the scene of the murder.

In order to get close to the tycoon Schuwald, Johan used Schuwald's mistress, Margot Langer. Schuwald thinks back to the time he visited the building with the sign with the three frogs when he went searching for Margot three years after they had parted ways.