Emma killer finally revealed in flashback episode? All will be revealed!

What really happened on the day of Emma's death? All is about to be revealed!

Secrets and lies, deception and revenge all come to light as a series of flashbacks reveal what each of the suspects did on the day of Emma’s death.

Why did Adam change his tyres? Why was Ross at the viaduct? Why did Laurel lie about visiting her sister and what incriminating photograph have the police discovered ? And what has made Pete so jittery?

All is made clear as the truth about the day the nurse plunged to her grisly death, finally becomes clear.