Kate Power is newly promoted - and in charge of her own station. So in addition to getting used to the pressures of responsibility and gaining the respect of a new team, she has to get to know a new neighbourhood, with new problems and new crimes.

When an important member of the local Chinese business community comes to her with some inside information, Kate is plunged into a case involving illegal immigration and prostitution. Her investigation is hampered by a missing officer - Kate's new colleagues dismiss him as a malingerer, but Kate has reason to believe something more sinister may have happened to him.