François Perrin is a good-for-nothing Parisian who is being pursued by thugs for gambling debts he cannot pay. One day, he happens to share an elevator with an Amazonian shaman, Wanu, who is making a visit to France to promote the cause of his people and try to save the South American rain forests. To the surprise of both Perrin and Wanu’s escort, Campana, the shaman singles out Perrin as a "good man" and subsequently sticks to him like a limpet. When Wanu has a heart attack, Campana appeals to Perrin to accompany him on a mission to the Amazonian jungle to try to recover the shaman’s stolen soul. Anxious to avoid his creditors’ idea of justice, Perrin is only too keen to accept. Fortunately, he has no idea what ordeals lie in store for him...
