Siddharthan is rich and has everything he could wish for. His father is a rich and sensible man who gives sane counsel to the people around. Siddharthan is a devotee but his brother Mani is an atheist and stays put and steadfast in his beliefs. One day, Siddharthan suddenly loses interest in everything worldly and embarks on a journey to the Himalayas as a seeker of truth. But he returns 11 years later as a hard core atheist who has lost all his faith in spirituality.
