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.
as DC Alice Parker
as DCI Jim Fedden
as Sgt Fred Thompson
as Julie Woodson
as DC Archie Rivers
as DI Lucas Stanning
as Jermaine King
as Loretta Kennedy
as Mitko
as Becca
as Deirdre Keir
