The death detective and the skeleton

In Southfield, when a skeleton with a ligature around its neck is unearthed by a hungry fox, the Death detective, DI Essach Wangdula, is brought in to investigate. The Detective Inspector is Sherlock Holmes's descendant; his assistant is DS Flora L. Hughes. Identification of the body by facial reconstruction leads the pair to London where they learn that the victim had been involved in a suspicious death. Then another body is discovered in Southfield and it's reported that there are now two missing people. Suddenly, Wangdula knows that he's up against a committed serial killer.