Lindsey Fadley meets hotel guest Ryan McKay, who later reveals he is a journalist investigating her missing sister Jess's disappearance.

Jess Fadley begins her freshman year at Southern State University, sharing a dormitory room with the sociable Daisy Molina.

Dormitory resident advisor Tammy Estep mysteriously disappears, with college authorities dismissing her absence as a voluntary departure.

Jess attends a fraternity party and witnesses her pledge sister Phoebe Baker in a romantic encounter with Dr. Daniels in his car.

Police identify the human remains at Doll's Eye Lake as belonging to Tammy Estep, who was killed by blunt force trauma.

Pledge sister Phoebe Baker disappears from Southern State University, prompting police to reluctantly open a formal missing persons investigation.

During Christmas break, Jess spots her father kissing a local high school senior in a downtown alley.

Freshman Meghan Lambert is reported missing after witnesses last see her getting into a yellow Mustang.

Lindsey discovers a hidden cache in Jess's closet containing failing grade reports and romantic photographs of Jess with Ryan McKay.

Lindsey and Ryan visit retired Sergeant O'Neil, who admits he deliberately avoided investigating Dr. Daniels out of fear of institutional backlash.

Cara recognizes the decomposed blue-and-green plaid blanket shown in a news broadcast as the one her mother knitted for baby Jess.

Lieutenant Higgins reveals that Jess's initialed Tiffany ring was recovered from the skeletal remains of Meghan Lambert at Doll's Eye Lake.

Daisy Molina confesses she gave Ryan a false alibi for the night Jess disappeared and reveals he drove to the Fadley house.

Lindsey lifts the tarp from the family paddleboat in the garage and discovers Jess's skeletal remains hidden inside.

Ben Fadley confesses to strangling Jess and concealing all four deaths, and police arrest him for the homicides.

Pool 1 follows the headline events of the novel's central mystery, from Jess's arrival at Southern State University through the successive disappearances that shook Mt. Randall in 1998. In the present day, the discovery of human remains at Doll's Eye Lake reignites the cold case and draws journalist Ryan McKay into the life of Jess's younger sister, Lindsey. As evidence accumulates—from Tammy's identified bones to the Tiffany ring found on Meghan's remains—the investigation closes in on the Fadley family. The climax arrives when Lindsey uncovers Jess's skeleton hidden in the family paddleboat, forcing a devastating confession from her father. Ben's arrest for all four homicides brings the decades-long mystery to a grim resolution, though it conceals the darkest truth of who the real killer was.

The core mystery of the missing women and its devastating resolution.

Lindsey secretly listens to the Ten Seconds to Vanish podcast and then drives past the cordoned-off Doll's Eye Lake crime scene.

Jess borrows her roommate Daisy's student ID card on her way to breakfast, unable to find her own.

Jess nearly collides with statistics professor Dr. Daniels on the way to class, an encounter that leaves her feeling deeply unsettled.

Lindsey meets Ryan at a café; he shares personal details about Jess, and she recovers a buried memory of Jess's college move-in day.

Jess drinks heavily at a fraternity party and briefly hallucinates seeing the recently disappeared Tammy in the crowd.

Ryan walks Jess home from the fraternity party and kisses her goodnight outside the dormitory, though neither learns the other's name.

Jess's Pi Gamma Delta pledge sisters discuss Phoebe's disappearance; Blair shocks the group by revealing she once caught Phoebe with Dr. Daniels.

Jess meets Ryan McKay properly in the campus cafeteria, where he introduces himself by name and she gives him her phone number.

Jess visits Dr. Daniels's office under the pretext of auditing his statistics class and notices his inappropriate personal interest in her.

Lindsey examines Sergeant O'Neil's case files alone and discovers physical evidence linking her father Ben to missing student Meghan Lambert.

Ryan unexpectedly visits Jess's dormitory in April, returns Daisy's student ID card, and drives Jess out to Doll's Eye Lake.

Daisy confronts Jess about her unexplained absences, excessive drinking, declining grades, and the mysteriously reappearing student ID card.

Ben Fadley confronts Jess on campus and slaps her after police question him about his relationship with Meghan Lambert.

Ryan describes to Lindsey and Ben what he witnessed the night Jess disappeared: seeing her argue with an older man before both vanished.

Ryan McKay publishes a Pulitzer-nominated investigative series on the case, while Cara files for divorce from Ben and leaves Mt. Randall.

Pool 2 traces the secondary moments and relationships that built toward the novel's catastrophic revelations without making the main plot headlines. From Jess's first days on campus—borrowing Daisy's ID, nearly colliding with Dr. Daniels, and falling for an unnamed boy at a party—these events capture a young woman's life unraveling beneath a surface of college normalcy. Lindsey's present-day investigation progresses through quieter but crucial encounters: listening to the true crime podcast, meeting Ryan at a café, and piecing together Ben's incriminating past from old police files. Tensions escalate as Daisy confronts Jess over the missing ID and Ben violently lashes out on campus, revealing the pressures converging around Jess in her final weeks. The pool closes on the aftermath of Ben's arrest, with Ryan's journalism and Cara's departure marking the permanent fracture of the Fadley family.

The supporting details and relationships that quietly built toward tragedy.

The Fadley family reads a news article about remains at Doll's Eye Lake; Cara repeatedly asks Lieutenant Higgins whether they belong to Jess.

Driving home for Christmas break, Jess spots her father's distinctive yellow Mustang parked near Doll's Eye Lake with two people inside.

Daisy calls Jess during Christmas break to warn her that Ryan previously had romantic relationships with both Tammy and Phoebe.

Lindsey confronts Ryan at her house about concealing his past romantic relationship with Jess before grudgingly agreeing to visit O'Neil with him.

Jess calls her father after recognizing Meghan on campus; their brief, tense conversation ends without resolution.

Jess witnesses Dr. Daniels arguing with and then kissing student Meghan Lambert outside Roosevelt Hall, deepening her rage.

A news report confirms that Phoebe Baker's remains have also been recovered from Doll's Eye Lake.

Lindsey learns that Daisy Molina now works as a counselor at Southern State University and drives to campus to confront her.

Jess receives an official letter of academic suspension on the morning of her sister Lindsey's sixth birthday party.

Jess publicly breaks up with Ryan outside Westwood Hall, heartbroken herself but telling him that he does not truly know her.

Jess calls Dr. Daniels to cancel their meeting, threatens to expose his predatory behavior to his wife, and he demands her address.

Dr. Daniels arrives at the Fadley house seeking a liaison, but Jess firmly rejects him and threatens him until he leaves.

Ben's perspective reveals that Jess killed all three missing students, calling Ben after each murder to help dispose of their bodies.

Ben strangles Jess in the family garage after she blames his infidelities for driving her to commit the murders.

Lindsey promises to keep Jess's crimes secret to protect her sister's memory, allowing Ben to be arrested for all four murders.

Pool 3 focuses on the pivotal revelations and choices that crack open the novel's deepest secrets, beginning with the Fadley family's first shock at learning about remains near the lake. Mounting clues point toward Ben—his Mustang spotted near Doll's Eye Lake, his incriminating link to Meghan, and Daisy's startling reappearance as a college counselor willing to talk. The 1998 timeline reveals Jess's final spiral, from the academic suspension letter she receives on Lindsey's birthday to her decisive break from both Ryan and Dr. Daniels on the same afternoon. Ben's own perspective delivers the novel's darkest truth, disclosing Jess as the killer of all three missing students before he strangles her in the garage to stop her. The pool ends with Lindsey's agonizing choice to protect her sister's reputation, sealing the deception that sends Ben to prison in place of the real killer.