A five-year-old girl goes missing and the police are called to search for her. When her body is found, it becomes a murder investigation, headed by DS Michael Walker.
Episode 1
Five-year-old Julie Harris goes missing after being seen playing at the local playground. Suspicion immediately falls on Julie's mother's new boyfriend, Peter James. But when her body is found inside a sewage pipe, evidence points towards local misfit Michael Dunn.
Episode 2
When items relating to the case are found in Dunn's flat, Walker has no doubt that Dunn is responsible. However, when it's revealed that a frantic young officer who found Julie's body planted evidence, Dunn's trial is thrown into jeopardy.