
An obsessed man unable to accept the abduction of his young son spends years searching for him.
The events that led up to Alice's return to Eckhausen in 2014 are finally revealed, as Sam and Gemma join Julien in a desperate race against time.
Julien finally uncovers the truth about a missing girl, but is forced to take matters into his own hands after the police dismiss his theory.
A new piece of evidence surfaces in 2015; a year later, Julien's investigation closes in on the missing girl.
As Julien edges closer to the truth in 2014, his body weakens; two years later, a third suspect is thrown into the case.