Sadie is an ambitious and successful undercover police officer. After playing the key role in a major drug bust she is dismissed by her male colleagues. And then she's suddenly given the chance to work on a case that could make her career.
In July 1992, 23-year-old Rachel Nickell was stabbed 49 times in front of her young son on Wimbledon Common. This fact-based drama revisits the investigation into her killing, which saw an undercover officer - known by the code name Lizzie James - used as bait to entrap the prime suspect, self-confessed lonely man Colin Stagg, who much later was proved to be innocent of the crime.—Canon y mus