Having recently moved from London 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 five members disagree on everything, and to make matters worse, a significant sum of money is stolen during one of the meetings, putting the much-loved community center at risk.

Suspicion for the theft 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. Agatha Christie superfan Phyllis is determined to prove Michael's been framed, while romance reader Arthur believes there's a mystery woman involved, and teenage sci-fi fan Ash thinks dark forces are at play.

While trying to locate Michael, solve the murder and recover the stolen money, each of them has their own secrets to protect. But despite the danger closing in, they won't rest until they've cracked the case and gotten everyone safe at home with a book, where they belong.