It's the following Thursday.

Elizabeth has received a letter from an old colleague, a man with whom she has a long history. He is being hunted and he needs her help. His story involves stolen diamonds, a violent mobster, and a very big mistake.

As bodies start piling up, Elizabeth enlists Joyce, Ibrahim and Ron in the hunt for a killer. And if they find the diamonds too? Well, wouldn't that be a bonus?

But this time they are up against a ruthless murderer who wouldn't bat an eyelid at knockin...

You'd think you would be allowed to relax over Christmas, but not in the world of the Thursday Murder Club.

On Boxing Day, a dangerous package is smuggled across the English coast. When it goes missing, chaos is unleashed. The body count starts to rise - including someone close to the Thursday Murder Club - as our gang face an impossible search and their most deadly opponents yet.

With the clock ticking down and a killer heading to Cooper's Chase, has their luck finally run out? And who will ...