Deceit

The appearance of a possible suspect gives Sadie Byrne, an ambitious Metropolitan Police officer, the opportunity to participate in Rachel Nickell's case as an undercover police officer. This opportunity can make or break her career.

After confessing some fantasies to Lizzie, Colin Stragg becomes the first suspect in the murder of Rachel Nickell and the central target of the operation, despite there being no hard evidence on him.

After the encounter, Lizzie reveals a dark secret from her past as part of her strategy to gain Colin's trust, but the pressure of getting his confession will begin to weigh on the young policewoman.

New information about the crimes destabilizes the operation, and although the evidence is still insufficient, Colin is called to trial.