Three philanthropist entrepreneurs decide to take the law into their own hands when they get an anonymous tip-off and learn that the truck carrying the funds in cash, is going to be hijacked.

The story follows a man living in Joburg city who helps a stranded woman, throughout the night, they reveal pieces of themselves.

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.