Years ago Malcolm Kershaw wrote a list of his ‘Eight Favourite Murders’ for his Old Devils mystery bookshop blog. Among others, it included those from Agatha Christie’s The ABC Murders, Patricia Highsmith’s Strangers on a Train and Donna Tartt’s The Secret History. Now, just before Christmas, Malcolm finds himself at the heart of an investigation – as an FBI agent believes someone may be re-enacting each of the murders on his list.

Can the killer be stopped before they get away with eight perfect murders?