Torn between family, religion and sexuality, the majority of black gay men live their lives in constant fear of rejection not only from society but from their loved ones. The documentary THE GREATEST SIN follows a group of queer black men as they come to terms, with their past traumas, toxic religious believes and self acceptance.

Sam, a 17-year-old German-Ghanaian, and his mother, Rita, are finally able to welcome two long-awaited visitors from their home country; but the joy of reunion is clouded by the unresolved residence status of Gifty and her son, Kwesi. Sam is thus confronted with questions about his origins and identity, and also begins to fall in love with Kwesi.

A grieving mother believing her son to be possessed by the devil, forces him through a spiritual-religious cleansing.