Ep 4. Chaos Theory

A mathematics professor turns to cocaine while in a race against time to publish his research. William is summoned by his colleague and girlfriend. William must get the professor before he loses everything, including his career, his personal life, even the diner owned by his immigrant parents. Meanwhile, William's son discovers a used needle in their house after a dinner party. William is devastated when he learns it belongs to his former sponsor, and now must decide whether to remove him from his life.