Tommy & Evelyn Christie have reluctantly agreed to host the wedding of Tommy's mother to Andrew Parsons, the Marquess of York, at their home Hessleham Hall.

None of the happy couple's adult children support the marriage but when Andrew is found dead outside the wedding chapel on the morning of his wedding it seems one of them has taken their anger a step too far. To make matters worse, Tommy's younger brother, Harry, is missing and quickly becomes the police's primary suspect.

Can Tommy & Evelyn uncover the murderer before the teenage Harry is found and arrested for the crime?