A young school girl is raped and murdered, but D.C.I. Connor still has no leads a month into the investigation. When Walker orders a review of unsolved cases, they turn up similar cases of raped and murdered teenage girls over the last ten years, and they find themselves searching for an apparent serial killer.
| Name | Type | Role | |
|---|---|---|---|
| Lynda La Plante | Writer | ||
| Ed Hall | Director | ||
| Victoria Smurfit | Actor | DCI Roisin Connor | |
| Emily Drake | Actor | Donna Ryan | |
| Trevor Cooper | Actor | DI William Shawl | |
| David Lyon | Actor | Harry Kennedy | |
| Dorian Lough | Actor | DS David Satchell | |
| Katharine Mae | Actor | Nadia Phillips | |
| Claire Louise Cordwell | Actor | Barbara | |
| Issy Van Randwych | Actor | Joyce | |
| Sarah Ozeke | Actor | DS Lisa West | |
| Ruth Brill | Actor | Madeleine Fuller | |
| Tim McMullan | Actor | Brooks | |
| Laura Aikman | Actor | Kelly Hobson | |
| Michael Brandon | Actor | Max Stanford | |
| Andrew Garfield | Actor | Martin Douglas | |
| David Hayman | Actor | Ch. Supt. Michael Walker | |
| Jeanine Thorpe | Actor | Rosemary Belling | |
| Kelly Hunter | Actor | Mrs. Douglas | |
| Teresa Banham | Actor | Sheila Field |