When Mubarak Bala posts criticism of Islam on social media, it sparks a landmark legal case and leaves him facing 24 years in jail. Raised in a Muslim family, Mubarak is the son of an Islamic scholar in the religiously conservative Kano state. But in 2014, Mubarak renounces Islam and later becomes president of Nigeria’s Humanist Association, gaining a reputation as an outspoken critic of religion. In 2020, a group of Muslim lawyers call for him to be tried for offences related to blasphemy over social media posts which they say insult the Prophet Muhammad and the religion of Islam. With access to Mubarak’s wife and lawyers, the BBC’s Yemisi Adegoke follows his case through the Nigerian court system, finding out what it tells us about freedom of belief in a country where religious tensions run deep. She talks to other Nigerian atheists as they follow Mubarak’s case and wrestle with the challenges of being open about their beliefs in a deeply religious society. Presenter: Yemisi Adegoke Producers: Valeria Cardi and John Offord Production co-ordinator: Mica Nepomuceno Editor: Helen Grady (Photo: Mubarak Bala speaking at Kaduna Book and Arts Festival in 2018, still from the film The Cost of Being an Atheist)