Family Secrets

Young German woman Emma Wichert invited the famous detective Drongo to Potsdam for the anniversary of her elderly relative. Emma has known Drongo for many years and is well aware of his unique abilities. That is why she was more interested than anyone else in having the international expert present at the anniversary. As they say, just in case. Because a woman's intuition suggested to Emma that something extraordinary could happen at the banquet. And the young woman was not mistaken — in the midst of the feast, the guest of honor, Martha, was poisoned with a deadly poison. Drongo immediately begins the investigation and quickly realizes that the murderer… made a mistake.