Respected police officer John River, a gifted cop with a troubled mind, struggles to come to terms with the recent loss of a colleague, and chases a suspect across London - with tragic consequences. Now at odds with the authorities, River ends up in a precarious position as he seeks to bring closure to the mother of murdered teenager, who blames him for failing to keep his promise.

Cast:
Stellan Skarsgård Stellan Skarsgård
John River 
Nicola Walker Nicola Walker
Jackie 'Stevie' Stevenson 
Adeel Akhtar Adeel Akhtar
Ira King 
Lesley Manville Lesley Manville
Chrissie Read 
Owen Teale Owen Teale
Marcus McDonald 
Georgina Rich Georgina Rich
Rosa Fallows