The body of a prostitute is found in an old boathouse. She has been strangled, and he forehead is marked with a letter 'S'. Cork and Marriott suspect the killer may return to dispose of the body at high tide and, with two constables, they wait...
| Name | Type | Role | |
|---|---|---|---|
| Ted Willis | Writer | ||
| Toke Townley; Carmel McSharry | Guest Star | ||
| John Cooper | Director |