The protagonist, a young man named Theodore, is about 36 years old and resides in Athens. Following a car accident, he finds himself in the body of a young man from Ancient Greece who attempted suicide. Confused about his whereabouts, Theodore sets out to find people and seeks guidance from the Delphic Oracle – Pythia.
Pythia reveals to Theodore that he must meet his true teacher, who alone can return him to his own time. To prepare spiritually for this encounter, Theodore's best bet is one of the greatest teachers of European civilization – Pythagoras, who coincidentally lives during that era. Theo seeks out Pythagoras and becomes his student. Throughout his education, Pythagoras explains to Theodore why he ended up in the past and the significant mission awaiting him in the future. In the process, Pythagoras imparts a wealth of intriguing facts to Theodore, blending authentic Pythagorean teachings with alternative viewpoints from contemporary science.
Theodore's beloved Elena remains in Athens, and his lack of attention towards her weighs heavily on him. Through his studies, Theodore learns the practice of lucid dreaming, enabling him to communicate with Elena in his dreams and share his experiences. In a critical turn of events, Theodore steals a bottle of expensive wine, leading to his arrest. Pythagoras intervenes, securing his release on bail. However, Theodore learns he can only remain on the island for a month. With his limited time, he must pass an interview with the local ruler. In another lucid dream, Theodore meets Alkeus, the young man from ancient Greece, who now inhabits his body in the present. Alkeus' adaptability to modern life is hindered by amnesia, and he relies on others to remind him of his past.
As Theodore's training progresses, Pythagoras not only introduces alternative, scientifically backed perspectives on the Universe's structure and the existence of parallel worlds but also takes him on journeys to explore them. Theo's situation becomes dire – execution awaits him if he stays in the past, while arrest and imprisonment await him in the future. In a lucid dream, he encounters his future self in a café, realizing that his true teacher is none other than himself. Spiritual purification is the key to his return to the present. Is he prepared to embark on his crucial mission?
