Who's got time to think about murder when there's a wedding to plan?

It’s been a quiet year for the Thursday Murder Club. Joyce is busy with table plans and first dances. Elizabeth is grieving. Ron is dealing with family troubles, and Ibrahim is still providing therapy to his favourite criminal.

But when Elizabeth meets a wedding guest who’s in trouble, kidnap and death are hot on their heels once more. A villain wants access to an uncrackable code, and will stop at nothing to get it. Plunged back into action once more, can the gang solve the puzzle and a murder in time?