In a peaceful retirement village, four unlikely friends meet weekly in the Jigsaw Room to discuss unsolved crimes; together, they call themselves the Thursday Murder Club. When a local developer is found dead with a mysterious photograph left next to the body, the Thursday Murder Club suddenly find themselves in the middle of their first live case.

It's not always a question of "whodunit?" Sometimes there's more mystery in the why or how. And although we usually know the unhealthy fates of both victim and perpetrator, what of those clever few who plan and carry out the perfect crime? The ones who aren't brought down even though they're found out? And what about those who do the finding out who witness a murder or who identify the murderer but keep the information to themselves? These are some of the mysteries that we follow through those six stories.

Four previously uncollected stories from one of the great mystery writers of our time - swift, cunning murder mysteries (two of which feature the young Adam Dalgliesh) that together, to borrow the author's own word, add up to a delightful "entertainment".

Adopted as a child into a privileged family, Philippa Palfrey fantasizes that she is the daughter of an aristocrat and a parlor maid. The terrifying truth about her parents and a long-ago murder is only the first in a series of shocking betrayals. Philippa quickly learns that those who delve into the secrets of the past must be on guard when long-buried horrors begin to stir.

The story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

Quick-witted, ambitious Ji Lin is stuck as an apprentice dressmaker, moonlighting as a dance hall girl to help pay off her mother’s Mahjong debts. But when one of her dance partners accidentally leaves behind a gruesome souvenir, Ji Lin may finally get the adventure she has been longing for. Eleven-year-old houseboy Ren is also on a mission, racing to fulfill his former master’s dying wish: that Ren find the man’s finger, lost years ago in an accident, and bury it with his body. Ren has 49 days to do so, or his master’s soul will wander the earth forever.

Mariana Andros is a brilliant but troubled group therapist who becomes fixated on The Maidens when one member, a friend of Mariana’s niece Zoe, is found murdered in Cambridge. Mariana, who was once herself a student at the university, quickly suspects that behind the idyllic beauty of the spires and turrets, and beneath the ancient traditions, lies something sinister. And she becomes convinced that, despite his alibi, Edward Fosca is guilty of the murder. But why would the professor target one of his students?

Adelaide Hills, Christmas Eve, 1959. At the end of a scorching hot day, a local deliveryman makes a terrible discovery. A police investigation is called, and the small town of Tambilla becomes embroiled in one of the most shocking and perplexing murder cases in the history of South Australia. Many years later and thousands of miles away, Jess is a journalist in search of a story. Having lived and worked in London for nearly two decades, she now finds herself laid off from her full-time job and struggling to make ends meet. Until a phone call out of nowhere summons her back to Sydney.

Sarah Jennings knows there’s one place she can go to find some peace and quiet during her difficult divorce. But arriving at her beloved father’s home in the countryside, she finds him unwell and hunched over boxes of files, studying the records from Cedar Hall, the crumbling orphanage in town. He says that hidden behind the wrought iron gates and overgrown ivy are secrets about their family, and he asks for her help.

A stranger enters the inner sanctum of the Ashby family posing as Patrick Ashby, the heir to the family’s sizeable fortune. The stranger, Brat Farrar, has been carefully coached on Patrick’s mannerisms, appearance and every significant detail of Patrick’s early life, up to his 13th year when he disappeared and was thought to have drowned himself.

Grant McAllister, a professor of mathematics, once sat down and worked all the rules out – and wrote seven perfect detective stories to demonstrate. But that was 30 years ago. Now Grant lives in seclusion on a remote Mediterranean island, counting the rest of his days. Until Julia Hart, a brilliant, ambitious editor knocks on his door. Julia wishes to republish his book, and together they must revisit those old stories: An author hiding from his past and an editor keen to understand it.

Why should distinguished Edwardian Cabinet minister Edwin Straford resign at the height of his career? Why does the woman he loves so suddenly reject him? Why, 70 years later, should people go to such lengths to prevent the truth coming out?

Elizabeth Cage is a child when she discovers that there are things in this world that only she can see. But she doesn't want to see them, and she definitely doesn't want them to see her. What is a curse to Elizabeth is a gift to others - a very valuable gift they want to control. When her husband dies, Elizabeth's world descends into a nightmare. But as she tries to piece her life back together, she discovers that not everything is as it seems.

Ashley Court: the tumbledown ancestral home of the Ashley family, all blessed with 'the gift' of being able to speak to each other without words. When Bryony Ashley's father dies under mysterious circumstances, his final words a cryptic warning to her, Bryony returns from abroad to uncover Ashley Court's secrets. What did her father's message mean? What lies at the centre of the overgrown maze in the gardens? And who is trying to prevent Bryony from discovering the truth?

When Tom Rigby is commissioned to paint a young woman’s portrait at Woolvercombe House, the offer is too lucrative to refuse. But from the moment of his arrival at the secluded country mansion, strange and inexplicable events begin to transpire. Soon, he is drawn into an impenetrable maze of horror, and by the time he discovers the role he is intended to play in a diabolical design, it will already be too late. For, the seeds of evil have been sown, and the time to reap their wicked harvest is nigh!