The Virtues star Niamh Algar is leading a new Channel 4 true-crime drama.
The broadcaster has commissioned My Name Is Lizzie, a four-part series covering the events following the murder of Rachel Nickell in 1992 and the subsequent honeytrap investigation to catch her killer.
Algar will play Lizzie James, an undercover female police officer who is asked to start a relationship with Rachel's suspected killer, Colin Stagg, in the hopes of getting a lead in the case.
The series has been written by The Tunnel showrunner Emilia di Girolamo, with filming expected to commence later this year.
My Name is Lizzie will include scenes of verbatim dialogue from the actual investigation, which saw Colin Stagg mistakenly accused of murder in the flawed investigation into Rachel's death.
Rachel's actual killer, Robert Napper, was convicted in 2008 on the grounds of diminished responsibility.
"The unique female perspective of Emilia's extraordinary scripts will shine a light on one of the most shocking stories in modern policing, in a drama which combines Story Films' trademark journalistic rigor with sensitivity and nuance," said Caroline Hollick, head of Channel 4 drama.
"And it's a privilege to be working with Niamh Algar, who is fast becoming an iconic star of the channel."
Algar's casting follows her breakout role as Dinah in The Virtues. She will also star in Ridley Scott's forthcoming sci-fi drama Raised By Wolves, which will air on HBO Max.
Further casting announcements for My Name is Lizzie will be made in due course, as filming commences later this year.
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