It is now 2015 and Julien's health is failing, but his determination to track down the missing girl means he has not finished with the Webster case just yet. Back in Germany, the press descend on Eckhausen for a trial when a seemingly vital piece of new evidence comes to light. Gemma is surprised by a phone call from Julien and finds a new purpose that helps break through her stupor. A year later and Julien is still searching for his third suspect when he comes across a name that he recognises. However, he finds himself running out of time as friends in Eckhausen are beginning to question his mental capacity. Can he persuade anyone to listen to him? And will they make it to the missing girl in time? Meanwhile, Matthew's behaviour becomes more and more extreme, culminating in a violent altercation with life-changing consequences for the Webster family.
Elenco: David Morrissey , Keeley Hawes , Abigail Hardingham , Tchéky Karyo , Anastasia Hille , Roger Allam , Laura Fraser , Lia Williams .