The three-part programme was adapted by Sarah Phelps and directed by Craig Viveiros and is based on Agatha Christie's 1939 novel of the same name.[1][2][3] The series features an ensemble cast, including Douglas Booth, Charles Dance, Maeve Dermody, Burn Gorman, Anna Maxwell Martin, Sam Neill, Miranda Richardson, Toby Stephens, Noah Taylor and Aidan Turner. The programme follows a group of strangers who are invited to a secluded island where they are murdered one by one for their past crimes.