Lorenzo's Oil

Based on the real-life case of the Odones family, the story concerns 5-year-old Lorenzo, suffering mightily from an apparently incurable and degenerative brain illness called A.L.D. His parents, an economist (Nick Nolte) and a linguist (Susan Sarandon), refuse to accept the received wisdom that there is no hope, and set about learning biochemistry to pursue a cure on their own. The film becomes an intriguing scientific mystery mixed with a story of pain, grief, and the strain on the two adults.