Who ran out of the apartment building? Who broke the lamp on the street? To whom does the expensive cufflink belong? Where did the monkey suddenly appear from? Who is lying and who is telling the truth?

Who can the two children trust when everyone seems to be hiding something?

These are just a few of the questions that need to be answered when a threatening letter reaches Leni’s hands just after her mother leaves suddenly for a business trip, making her appear more anxious than usual. Along with Nikolas, they embark on a daring investigation filled with unexpected events and twists, full of suspense and tension, where nothing is as it seems.

Seeking the truth once again, the two children will this time face injustice, corruption, and the dark sides of this world. And they will discover how important it is to stand up, react, and use your voice to truly make a difference.