Successful Parisian businessman Stephan Marchado is in for the surprise of his life when, after thirteen years of separation from his wife Patricia, who now lives in South America, he ventures deep into the heart of the remote rain forest to get her to sign a formal divorce agreement. He didn't know that his wife was pregnant when she left him several years ago. And now, after all this time, he finds that he has a son, who has been raised as an Indian and given the Indian name Mimi-Siku, who has grown into a mischievous young boy with a fondness for playing with poisoned blow darts. Stephan promises his son that some day--when he becomes a man--he will take him to visit the "big city" where he lives. That very night, unaware of the meaning of the Indian ritual which Stephan observes by firelight, he watches as his son participates in the sacred process of "becoming a man." He's further astonished when he becomes aware that he must keep his promise or risk losing the respect of his newfound son.