“The Black Forest” refers to a region in southern Germany, where a Syrian refugee resides in one of its cities, burdened by the psychological weight of "war trauma." The title also symbolizes the profound darkness within his soul, a result of the horrors he experienced there, which relentlessly haunt him in his nightmares.

One day, the protagonist awakens in a seemingly safe "European city" with no recollection of how he arrived there. Strangely, the city is devoid of people, leaving him to grapple with absurd, surreal, and Kafkaesque hallucinations that stem from the depths of his subconscious.

These hallucinations not only mirror his internal terrors but also embody the cultural and civilizational shock experienced by immigrants when confronted with emotionally distant Western society, in stark contrast to the warm Eastern intimacy they once knew. His brief departure from the "psychotherapy resort" provides a glimpse into the social environment he inhabits, as he endeavors to fathom the origins of his nightmares.

Just as the Black Forest teems with life and vitality, cities, people, and their stories come to light, offering insight into the hero's harrowing experiences. His journey to confront his horror and dispel the darkness within his soul is facilitated by the "Tree of Memories," a tangible tree in the forest housing a hollow containing a notebook where passers-by record their stories.