After clinical death, Ada begins to hear a voice. He claims to be in another world. It provides information about the world from which souls come to earthly life. Reflections on the continuation of life for Ada took on meaning after the death of her sister. Metaphysician Aronov is ready to conduct a deadly experiment to prove the existence of the soul. Ada rejects the scientist's proposal. A mistress is set to help Aronov, who decided to organize the abduction of a potential experimental subject. The caretaker is instructed to cut contact with the submerged. A philosophical novel with scientific hypotheses based on the author's own experience.