The Tower S2, E4

After a long-serving cop and a teenage girl fall to their deaths from a London tower block, Detective Sarah Collins investigates the dark heart of policing.

Cast:Gemma Whelan , Emmett J Scanlan , Tahirah Sharif , Jimmy Akingbola , Michael Karim , Robin Morrissey , Laurie Delaney , Karl Davies , Jack Shalloo , Ella Smith , Faith Delaney , Charley Palmer Rothwell , Tamzin Outhwaite , Niamh Cusack , Camilla Beeput , Bobby Lockwood , Nick Holder , Lola Elsokari