Having recently moved to a small Cornish seaside village, Nova Davies started a book club at the local community center, but so far it's a disaster. The members disagree on everything, and a significant sum of money is stolen during one of the meetings. Suspicion falls on book club member Michael, especially when he disappears and a dead body turns up at his house. But the book club has their own theories. Phyllis is determined to prove Michael's been framed, while Arthur believes there's a mystery woman involved, and Ash thinks dark forces are at play. Despite the danger closing in, they won't rest until they've cracked the case and gotten everyone safe at home.