Observational documentary about Nazanin Zaghari-Ratcliffe, the British-Iranian charity worker arrested at Tehran airport in 2016 and accused of spying. Her husband Richard juggled a media and political campaign to free his wife while raising their daughter Gabriella alone. He knew then that his wife's detention was deeply connected to the complicated and toxic diplomatic relationship between Britain and Iran and to an unpaid debt going back half a century. Five years in the making, this film includes never-before-seen material captured by Nazanin herself.