As Queen Sono tries to eavesdrop on the suspicious conversation between two men sitting near her at a stylish Zanzibar rooftop bar, her grandmother calls her, asking in isiZulu when she’s going to come to church. Minutes later, Queen has set aside her personal life and is fully embroiled in her mission, fending off two attackers in a busy indoor marketplace as onlookers watch the action unfold amid the fruit, vegetables and spice packets.