The apparently happy Harrogate family is torn apart when they return home to discover their daughter, Emily, dead. Connor and Satchell begin to sift through the case and discover that the family isn't as stable as it first appeared. Connor appeals to Walker for some backup, who is having problems of his own with his own son Richard. Secrets are soon discovered and fragile relationships are tested in the process of ensuring justice is done.
| Name | Type | Role | |
|---|---|---|---|
| Lynda La Plante | Writer | ||
| Andy Hay | Director | ||
| Sarah Ozeke | Actor | DS Lisa West | |
| David Hayman | Actor | Ch Supt Michael Walker | |
| Hannah Smith | Actor | Julia Fellows | |
| James Musgrave | Actor | Mark Harrogate | |
| Andrew Lee Potts | Actor | Michael Summerby | |
| Kate Maravan | Actor | Miss Sugden | |
| Gemma Jones | Actor | Dr. Jean Mullins | |
| Victoria Smurfit | Actor | DCI Roisin Connor | |
| Ellie Martin-Sperry | Actor | Samantha | |
| Carey Mulligan | Actor | Emily Harrogate | |
| Michael Fassbender | Actor | Douglas Nesbitt | |
| James Sutton | Actor | Barry Milne | |
| Glynis Barber | Actor | Dora Hills | |
| Greg Wise | Actor | John Harrogate | |
| Emerald Fennell | Actor | Sheena | |
| Tim Potter | Actor | Dr. Adrian Kinton | |
| Benedict Smith | Actor | Richard Walker | |
| Zahra Ahmadi | Actor | DC Imelda Folks | |
| Rachel Davies | Actor | Ellen Summerby | |
| Nadia Cameron-Blakey | Actor | Diedre Harrogate | |
| Mark Buffery | Actor | Dr. Kenneth Hauw | |
| Mark McCubbin | Actor | Peter Brett | |
| Dorian Lough | Actor | DS David Satchell | |
| William Ely | Actor | Sgt Grant | |
| Max Benitz | Actor | James Harrogate | |
| Claire Bloom | Actor | Helen Masters | |
| Mark McCubbin | Actor | Peter Brett |