episodes
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1.
Episode 1
After the murder of a young mother in London, there's a climate of fear, and catching her killer becomes a national obsession. So police devise a controversial honeytrap fronted by a female officer.
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2.
Episode 2
The undercover operation gains momentum as prime suspect Colin Stagg starts to fall for covert officer 'Lizzie James'. But when the honeytrap is compromised, Detective Inspector Pedder must act fast.
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3.
Episode 3
Covert officer 'Lizzie' meets suspect Colin Stagg face-to-face and attempts to earn his trust. But as the weeks pass, the pressure she's under starts to take its toll.
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4.
Episode 4
While Colin Stagg is on remand in prison, another horrific murder occurs with some clear similarities. Is Stagg in fact an entirely innocent man?