Author Helen Bailey thought she'd found the perfect ending to her own story when she met Ian Stewart, but this was no fairy-tale romance; it was a story that would end in her murder. When the renowned writer of children's books was reported missing, her fiancé Ian Stewart claimed that she had simply gone to her holiday home in Broadstairs to 'clear her head'. Later, he was charged with her murder when her body was discovered in a cesspit underneath their home, killed by her fiancé who stood to inherit the 4 million estate.
| Actor | Role |
|---|---|
 Kevin WhatelyNarrator (voice) | Narrator (voice) |
 Colin SuttonSelf - Former Murder Squad Detective | Self - Former Murder Squad Detective |
| CCliff LansleySelf - Behavior Analysis Expert | Self - Behavior Analysis Expert |
| LLaura RichardsSelf - Criminal Behavior Analyst | Self - Criminal Behavior Analyst |
| JJennifer WildSelf - Psychologist, University of Oxford | Self - Psychologist, University of Oxford |
| JJP AsherSelf - Journalist, Royston Crown Newspaper | Self - Journalist, Royston Crown Newspaper |
| JJack HardySelf - Reporter, Press Association | Self - Reporter, Press Association |