A veteran beat cop and teenage girl fall to their deaths from a tower block in south-east London, leaving a five-year-old boy and rookie police officer Lizzie Griffiths on the roof, only for them to go missing. Detective Sergeant Sarah Collins is drafted in to investigate, working to find Lizzie before she comes to serious harm, but also to uncover the truth behind the grisly tower block deaths.
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The Brannon manhunt reaches its climax, and Sarah faces Tania's killer.
As the manhunt closes in on Brannon, Sarah realizes where Tania's body might be buried.
Sarah and Lizzie find themselves working on the same murder case.
Sarah searches for a vanished teenager; Lizzie investigates a case of domestic violence.
A veteran beat cop and teenage girl fall to their deaths from a tower block in south-east London, leaving a five-year-old boy and rookie police officer Lizzie Griffiths on the roof, only for them to go missing. Detective Sergeant Sarah Collins is drafted in to investigate, working to find Lizzie before she comes to serious harm, but also to uncover the truth behind the grisly tower block deaths.
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Gemma Whelan , Jimmy Akingbola , Tahirah Sharif
Faye Gilbert
Mammoth Screen , Windhover Films
as DS Sarah Collins
as DC Steve Bradshaw