In a tranquil retirement village in the British countryside, a motley crew gathers every Thursday to delve into old files of unsolved murders. But when a brutal killing occurs just a stone's throw away, the Thursday Murder Club faces a real-life case.
Not just yellowed, smudged typewriter pages from another era; a real case, a real corpse, and, somewhere out there, a real killer. Elizabeth, Joyce, Ibrahim, and Ron may be nearing eighty, but they still have the heart for it. Will this unorthodox yet brilliant gang manage to catch the killer before it's too late?