When Detective Karim Belkacem's best friend and colleague, Abdou, goes missing during an investigation into an illegal cartel, Karim is sent to Tangier look for him. But the Tangier police have another problem on their hands. Thousands of sub-Saharan migrants have collected in the region, desperate to get to the Promised Land of Europe. Unable to trust his contacts in the police, or anyone in Tangier's underworld of traffickers and informants, Karim turns to his adopted sister Ayesha for help. The truth behind Abdou's disappearance is more disturbing than either of them could imagine.