The Household’s Competing Suspicions

This flow follows the suspicion moving among Fernly’s inhabitants as each concealed motive is uncovered and distinguished from murder.

increasingBearing stren­gth in each eventdecreasing

Parker Under Suspicion

Parker Under Suspicion Nervous behavior Parker appears flustered and admits he overheard the word blackmail. Inspector Davis suspects that the butler may have killed Ackroyd to obtain the missing letter. A second secret Parker’s past includes blackmail of his own, but he denies involvement in Ackroyd’s death. Poirot tests his story rather than treating nervousness as proof.

Mrs. Ackroyd’s Hidden Search

Mrs. Ackroyd’s Hidden Search A concealed motive for lying Mrs. Ackroyd admits she searched Ackroyd’s desk for his will and had tampered with the silver display table. She fears the implications of Poirot’s challenge. Self-interest without homicide Her secrets explain her agitation and resentment over the will, but do not establish a murder motive strong enough to prove guilt. Another apparent suspect is separated from the central crime.

Flora’s False Alibi

Flora’s False Alibi A lie about the last meeting Flora says she visited Ackroyd at a quarter to ten, making him appear alive after the Dictaphone’s recorded speech. She is actually hiding her theft. Suspicion redirected Her lie distorts the murder window and temporarily protects her reputation. Once she confesses, the investigation can distinguish her theft from the killing.

Miss Russell’s Breaking Point

Miss Russell’s Breaking Point A new danger to Kent Poirot implies that Charles Kent may be charged after the murder window is revised. Miss Russell, fearing for him, finally discloses their relationship. A secret mistaken for guilt Her concealment had made her suspicious, but its purpose was maternal protection. Poirot recognizes that her confession explains Kent’s presence without implicating him in murder.

The Suspect Who Remains

The Suspect Who Remains False suspicions fall away Parker’s blackmail, Flora’s theft, Russell’s hidden son, and Ralph’s disappearance each explain one part of the apparent case. None accounts for the whole pattern. The trusted doctor exposed The one person who narrated the evidence was also able to manufacture it. Suspicion turns from the household’s visible secrets to the investigator’s concealed crime.

Friday night, after the body is found

The Friday before the murder

The night Ackroyd is murdered

After the accepted time of death changes

At the ending, when Poirot names Sheppard