This is a documentary about unsung heroes of World War II. In 1943, a 24-year-old maths student and a GPO engineer combined to hack into Hitler's personal super-code machine - not Enigma but an even tougher system, which he called his 'secrets writer'. Their break turned the Battle of Kursk, powered the D-day landings and orchestrated the end of the conflict in Europe. But it was also to be used during the Cold War - which meant both men's achievements were hushed up and never officially recognized.
The movie is centered on a couple, Nader and Simin, and their 11-year-old daughter, Termeh. Nader and Simin are about to leave the country for good; however, Nader has a change of heart and decides to stay and look after his father who suffers from Alzheimer's disease.
A mysterious Hollywood stuntman who moonlights as a getaway driver seems to be trying to escape his shady past as he falls for his neighbor - whose husband is in prison and who's looking after her child alone.