1Episode 1
When an impassive headmaster reports that his wife has gone missing to the police, her disappearance soon takes a sinister turn.
2Episode 2
Annie is struck by Michael's strangeness in the wake of an awful discovery, but she also sees his vulnerability in the midst of the grimmest of tasks.
3Episode 3
Michael expresses his discontent with the investigation during questioning, and Annie alights on a new suspect.
4Episode 4
Annie and her colleagues begin to see things in a new light as fresh information continues to emerge.
5Episode 5
Michael is increasingly isolated as the investigation broadens.
6Episode 6
The investigation hurtles towards a shattering conclusion.