Ray's growing years are marred by strange voices in his mind. He joins the Search for Extra Terrestrial Intelligence (SETI) program and receives a powerful signal, which he finds is related to his childhood experiences. He is determined to follow this through, but his grant is withdrawn. His mother introduces him to a meditation master, who initiates him into the practice. This leads him on a parallel track to trace the antecedents of the signal, taking him to his mother's village in the southern state of India, Kerala. The mystery unfolds in his journey to find the answers.