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 | ||
| Jennifer-Jay Ellison | Guest Star | ||
| Claire Louise Cordwell | Guest Star | ||
| Andrew Garfield | Guest Star | Martin Douglas | |
| Laura Aikman | Guest Star | ||
| Emily Drake | Guest Star | ||
| Kelly Hunter | Guest Star | ||
| Jeanine Thorpe | Guest Star | ||
| Stephen Aintree | Guest Star | ||
| Vin | Guest Star | ||
| Tim McMullan | Guest Star | ||
| Katherine Mal | Guest Star | ||
| Charlotte McDonagh | Guest Star | ||
| David Lyon | Guest Star | ||
| Sian Webber | Guest Star | ||
| Ruth Brill | Guest Star | ||
| Issy Van Randwych | Guest Star | ||
| Ryan Kygell | Guest Star | ||
| Crissy Rock | Guest Star | ||
| Danny Lee-Wynter | Guest Star | ||
| Ed Hall | Director |