As bodies start piling up, Elizabeth enlists Joyce, Ibrahim and Ron in the hunt for a ruthless murderer. And if they find the diamonds too?...

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

But this time they are up against an enemy who wouldn't bat an eyelid at knocking off four septuagenarians. Can The Thursday Murder Club find the killer (and the diamonds) before the killer finds them?