Agatha Christie becomes involved in solving the murder of a woman bludgeoned on a train; in the winter of 1928, Agatha Christie travels to Iraq, where she falls in love with an attractive archaeologist and has to unravel a series of murders; in the midst of personal turmoil, Agatha Christie decides to kill off her famous character, Hercule Poirot, and sell the manuscript to a wealthy businessman, but the businessman mysteriously dies and the manuscript disappears.