It all starts with an explosion. Another normal day, another bomb exploding on a bus. But the shock wave caused by this random terrorist attack spreads far beyond the small square in the Turkish capital. The world of the Dervish House is the huge, ancient, paradoxical city of Istanbul. It's 2027 and Türkiye is about to celebrate its fifth anniversary of joining the European Union. Advanced companies developing nanotechnology calmly coexist here with oriental bazaars, almost unchanged since the Middle Ages. Turkey is also the key to the huge gas reserves of Russia and Central Asia. The owner of an art gallery is busy searching for a unique artifact that will bring her a million euros. A drug addict who almost killed his own sister. Stock trader with fantastic ambitions. Retired university professor. A girl from the provinces who came to conquer the capital. And a boy who cannot hear the sounds of the outside world, but who is capable of amazing tricks with mini-robots. On the day of the explosion, the fates of all these characters find themselves tied into a tight ball. And to unravel it, you will have to travel to the house of a dervish, located in the heart of Istanbul.