| Julie Walters stars as a mother dealing with the impact of the sudden murder of her 21 year old son. Each episode follows her story and also focuses on specific characters whose lives are transformed by the event – the journalist who is covering the story; the Indian newsagent who used to sell the victim his fags; and the passerby who happened across his body. |
| Name | Character | Episodes |
|---|---|---|
| Julie Walters | Angela Maurer | 4 |
| Imelda Staunton | DCI Billie Dory | 4 |
| David Morrissey | Dave Dewston | 4 |
| Robert Glenister | Robert Weldon | 4 |
| Paul Higgins | Lee Finch | 4 |
| Om Puri | Akash Gupta | 4 |
| Aaron McCusker | D.S. T J Holland | 4 |
| Roland Manookian | Ryan McGuinness | 4 |
| Nicola Reynolds | Roz Finch | 4 |
| Elizabeth Rider | D.S. Wenthworth | 4 |