A successful author of Agatha Christie-style novels dies under suspicious circumstances, with his last book seemingly unfinished. This leaves two mysteries: What happened to him? And how does his latest potboiler end? Oscar®-nominee Lesley Manville (The Crown, Phantom Thread) stars as the author’s book editor, Susan Ryeland, who assumes the role of detective in the case. Meanwhile, Tim McMullan (Patrick Melrose, Cyrano) plays the fictional sleuth in the incomplete novel, whose investigation parallels Susan’s. Based on Anthony Horowitz’s (Foyle’s War) ingenious bestselling novel, this six-part series also stars Conleth Hill, Michael Maloney, Alexandros Logothetis and Claire Rushbrook. "