As dawn breaks on the snowy February morning hours, a refrigerated lorry is available parked in the heart of London’s Chinatown. Inside twelve women, apparently unlawful immigrants, are inactive from hypothermia. However in the cab, DC Max Wolfe finds thirteen passports. Twelve deceased women. Thirteen passports. The search for the missing woman will take Potential Wolfe into the dark heart of the world of human smuggling, mass migration and 21st century slave marketplaces.