A businessman is forced to spend the Christmas holiday in Durban, South Africa, due to a business deal gone awry. However, his plans are complicated by the presence of a boisterous family and their festive antics.
Quantum portrays a day in South Africa through the lives of a diverse cast of characters: a recovering addict, an estranged daughter, a single mother, an uninspired filmmaker, orphans and a thug. Though living separate lives, they are intricately connected in unexpected ways.