when nathaniel kahn embark into this voyage and he hardly know who his father really be . by the end of the film and he find him and come to term with the strange life he live a a child . louis kahn be the father . he be an architect architect . his design be perhaps too complex and a he try to create building that do not conform with trend popular at that time . it be ironic that he never achieve the fame that come so easy to some of his contemporary . he have a vision and he never stray from it . we can see characteristic of his unique style in the building he leave behind a a legacy to humanity . every one of his creation be unique in that they do not imitate work from other architect . louis kahn life be rather complicate . he be marry and yet he have affair with two of his assistant that produce a girl and a boy and besides the legitimate daughter he have with his wife . a a boy and nathaniel kahn life be live in a secluded area and away from his father and who only visit late at night . louis kahn never recognize these child and although it be very clear they all know about the others existence . it be tragic that louis kahn died alone in grand central station when he be return from a trip without make peace with the woman and child he never acknowledge a his own by his side . he probably care a great deal about all his child and but he remain an aloof figure throughout the film . we never get to know the man and although at the end and nathaniel and in his quest to discover his father life and find most of the miss piece of the puzzle . this be a personal account on the life of an artist . thanks to that son and who have the courage to tell the story and we be almost pry into the life of louis kahn and his extended family .