Code Blue: Murder: The Murder of Katherine Smith

The first of two documentaries following separate murder investigations, from the first `code blue" call through to the to the convictions of the killers. Detectives are called to a flat in Cardiff where the body of a young mother has been found with stab wounds. The key suspect is her boyfriend of six weeks, who has gone missing. However, they are able to track his mobile phone to the neighbouring police area around Bristol, where he is still sending text messages to the victim's family. But then he turns his phone off