In this second instalment of the two-part series opener (they do it to confuse you) the detective visits his childhood home to break the news of Roy's death, and his parents plead with him to find out what happened. Banks defies DI Helen Morton and returns to the station to try and lead the investigation into the murders of Roy and Jennifer Lewis. Both convinced that the answer to the case lies with Carmen, an 'exotic companion' being treated at the Berger-Lennox clinic, Banks and Helen agree to put their differences aside to help each other get to the truth. But when Banks is finally able to track Carmen, her evidence appears to make the case more complicated than ever.