The Perfect Couple Chapter 31: Nantucket Summary and Analysis
⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.
Summary
Detective Nick Diamantopoulos receives a call from the Chief, who updates him on the case: Tag Winbury remains a person of interest, but the Chief is not convinced of his guilt. Tag admitted he took Merritt out in the kayak, that she jumped off on purpose, and that he pulled her back by the wrist—consistent with the medical examiner’s report. He also admitted to pouring the shots, but forensics found no drugs in the bottle or shot glasses. Tag claimed Merritt must have cut her foot after they returned to dry land, and he mentioned that Merritt drank a glass of water that Featherleigh Dale got from the kitchen. Nick notes that no water glass was found at the scene, suggesting someone removed it—possibly Greer Garrison Winbury, who was in the kitchen at some point.
Nick interviews Featherleigh Dale at the police station. Feather is flirty, disorganized, and eager to talk. She reveals she has known the Winburys for years through her late brother and does business with Greer. She describes the night of the wedding: after the main party ended, she went looking for alcohol, found Merritt crying in the rose garden, and the two of them sneaked to the pool house. They drank (Feather had both Grey Goose and tonics because Merritt declined), and they talked about being involved with married men. Later, they joined Tag and Thomas Winbury under the tent for rum. Merritt asked for water, and Feather got it from the kitchen, using the bathroom while leaving the water on the counter. Feather says no one else was in the kitchen. She does not remember clearing the water glass.
Feather claims she left the tent, called a taxi, and returned to her inn. But the inn manager says she arrived at 5:15 a.m., well after Merritt’s estimated time of death (2:45–3:45 a.m.). When Nick mentions security cameras at the inn, Feather confesses she did not take a taxi. Instead, she fell asleep (passed out) inside the Winbury house. She admits she was waiting for Thomas Winbury, with whom she had been having an affair. Thomas broke it off in May when his wife, Abby, became pregnant. Feather says Thomas told her not to come to the wedding, threatening to kill her if she did. Nick realizes Thomas could have had the opportunity to drug Merritt’s water while Feather was in the bathroom. He steps out to call the Chief, instructing him to talk to Thomas.
Key Events
- Nick learns that Tag’s story about the kayak aligns with the ME’s findings, but no water glass was found at the scene.
- Featherleigh Dale is brought in for questioning; she is flirtatious and unorganized.
- Feather reveals she met Merritt crying in the rose garden; they bonded over their affairs with married men.
- Feather and Merritt went to the pool house for drinks; Merritt did not drink.
- They later joined Tag and Thomas under the tent for rum. Merritt asked for water; Feather got it, leaving it unattended while she used the bathroom.
- Feather initially claims she took a taxi home but changes her story when pressed about security cameras.
- She admits she passed out in the Winbury house, waiting for Thomas Winbury.
- Feather reveals she and Thomas had an affair, which he ended when Abby got pregnant. Thomas threatened to kill her if she came to the wedding.
- Nick deduces that Thomas—or Greer—could have drugged the water during the five minutes Feather was away.
- Nick calls the Chief to request an interview with Thomas Winbury.
Character Development
- Nick Diamantopoulos: Shows patience and psychological skill in handling a talkative witness. He uses a calm, gentle approach rather than intimidation, and his “kill” smile helps extract the truth. He remains methodical, connecting the missing water glass to the timeline.
- Featherleigh Dale: Initially appears scatterbrained and flirtatious, but her testimony reveals deeper layers: she is vulnerable (crying over Thomas), honest about her affair, and terrified of Greer. Her admission about waiting for Thomas shifts the focus of the investigation.
- Thomas Winbury: Not physically present, but his character is developed through Feather’s account. He is revealed as a married man who had an extramarital affair, ended it abruptly when his wife became pregnant, and threatened violence—making him a prime suspect.
- Greer Garrison Winbury: Remains a shadowy figure. Feather says she did not see Greer in the kitchen, but Nick suspects Greer could have tampered with the water. Feather’s fear of Greer underscores Greer’s controlling, intimidating presence.
Themes, Symbols, or Motifs
- Deception and Hidden Affairs: The chapter centers on secret relationships—Feather and Thomas, Merritt and an unnamed married man. These affairs drive the plot and motives.
- The Missing Water Glass: The unaccounted-for glass symbolizes the elusive truth. Its absence suggests evidence was intentionally removed, pointing to a cover-up by someone with access to the kitchen—likely Greer or Thomas.
- Sedation as a Weapon: The lack of poison (only sedation) implies the killer intended to incapacitate Merritt rather than kill her outright, possibly to facilitate drowning. This connects to Tag’s kayak ride and the opportunity to push her overboard.
- Timing and Alibi: Feather’s contradictory statements about her return time highlight the importance of chronology in a murder investigation. Her eventual confession reveals the weakness of her alibi and Thomas’s potential involvement.
Why This Chapter Matters
This chapter is a turning point in the investigation. It eliminates the theory of a spiked rum bottle or shot glasses and focuses attention on the missing water glass. The revelation of Thomas’s threat against Feather gives the police a new, strong suspect. Additionally, Feather’s testimony clarifies the timeline and places Merritt’s emotional state (crying) in context, suggesting she may have been vulnerable due to her own affair. The chapter deepens the mystery by raising the possibility that a family member—either Greer or Thomas—orchestrated the death.
Study Questions and Answers
1. Why is the missing water glass critical to the investigation?
The water glass is the only item Merritt consumed that could have been drugged without being detected. Tag mentioned Merritt drank water from Feather, but the glass was not at the scene. If it was removed and washed, it would explain why forensics found no sedative in the shot glasses or bottle. The glass’s absence suggests deliberate tampering, making whoever removed it a prime suspect—likely someone who went into the kitchen after Feather left it.
2. What does Feather’s change in story about her return time tell us about her credibility?
Feather initially claimed she took a taxi and returned to her inn at an early hour. When Nick confronted her with the inn manager’s statement (5:15 a.m.) and the threat of security cameras, she admitted she passed out in the Winbury house waiting for Thomas. This lie undermines her reliability but also makes her more credible in the end, since she confessed under pressure. It shows she was protecting Thomas or herself.
3. How does the chapter connect Merritt’s romantic situation to the motive for her murder?
Merritt was involved with a married man (implied to be Tag or someone else at the wedding). Feather notes Merritt was crying and said the man pursued her then dropped her. If that man was Tag, Greer had a strong motive to eliminate Merritt. If the man was Thomas (unlikely given Feather’s affair with Thomas), Abby or Thomas himself might have been motivated. The connection between Merritt’s secret relationship and the killer’s identity is central to the puzzle.