49 pages • 1-hour read
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Content Warning: This section of the guide contains discussion of mental illness, self-harm, death by suicide, child sexual abuse, and death.
Elizabeth Rooth returns to her apartment after leaving work at her telemarketing job and finds her identical twin, Emily, unresponsive in bed, a sign of a depressive episode. Elizabeth comforts her, helps her to the bathroom, and washes her, discovering fresh cuts and older scars on Emily’s legs and stomach. After the bath, Elizabeth settles Emily in the living room, where they eat dinner and watch television.
A documentary on teen depression triggers a flashback. Eight years earlier, at their adoption party, their biological mother made a surprise appearance. She showered Emily with attention while ignoring Elizabeth, upsetting both girls. That night, Emily revealed that she had scratched her leg with a thumbtack for the first time, saying it made her feel good. She made Elizabeth promise to keep it a secret.
At lunchtime on a workday, Elizabeth argues with her boyfriend, Thomas, in his car. Thomas, her boyfriend of almost a year, whom she met at their telemarketing office, presses to meet Emily. Elizabeth resists. He is a kind Christian studying to be a youth pastor and does not understand why she has kept him apart from her home life.
A series of flashbacks fills in Emily and Elizabeth’s history. As children living with their biological mother, the twins endured neglect and sexual abuse by their mother’s “special friends” (23). At age seven, they tried to cook and accidentally started a fire, which led to their rescue. Back in the present, fearful about Emily’s worsening state, Elizabeth decides she cannot manage alone. She secretly calls their childhood therapist, Lisa, and schedules an appointment for the next day.
The next day, Elizabeth visits Lisa’s therapy office and finds that it looks much the same. The familiar setting steadies her as she begins to share her current concerns with their longtime therapist. In a flashback to the period after their rescue, the twins begin life with their adoptive parents, Bob and Dalila Rooth. The adjustment proves difficult, marked by attachment problems, rages, and a struggle to trust, even as Bob and Dalila provide safety.
In the session, Elizabeth admits she is in love with Thomas and fears telling Emily. Lisa reassures her that loving someone besides her sister is acceptable and proposes regular sessions. Elizabeth explains that Bob and Dalila have become distant under the strain of Emily’s depression. She agrees to continue therapy and leaves feeling cautiously hopeful.
Two days later, Elizabeth visits Thomas in his dorm room. She tells him she is ready for him to meet Emily but needs to prepare her first, explaining the severity of Emily’s depression. She then tells Thomas for the first time that she loves him, and he says it back. Elizabeth believes careful timing will help the introduction go smoothly.
On Saturday, Elizabeth finds Emily in a good mood and decides to tell her about Thomas. Emily seems supportive until Elizabeth suggests Thomas come to their apartment. Emily panics, insisting the apartment is her only safe space, and flees to her bedroom. Elizabeth follows, stays with her, and calms her. Emily apologizes for the outburst and agrees to meet Thomas somewhere neutral.
The following Tuesday afternoon, Thomas tells Elizabeth that Emily approached him at his workplace. Emily warned him to stay away and called Elizabeth “crazy” and damaged. Enraged, Elizabeth leaves work and confronts Emily at their apartment, shouting and shaking her. Emily breaks down and runs to her bedroom. For the first time, Elizabeth does not go after her. Exhausted, she falls asleep on the couch.
Late that night, Elizabeth wakes and sees a light under the bathroom door. She enters and finds Emily on the floor, dead from an overdose, with fresh self-harm wounds inflicted from her nearby carving kit. Elizabeth collapses, overwhelmed with grief and self-blame.
These opening chapters establish the novel’s central psychological landscape through a first-person narration that is an unreliable performance. Events at the end of the novel reveal that what appears to be real in the early chapters is, in fact, an elaborate self-deception. The narrative voice, which presents itself as that of the more functional, caretaking twin “Elizabeth,” is a constructed identity—a psychological defense mechanism. This framework introduces the core theme of The Fragmentation of Identity After Trauma. Every observation Elizabeth makes about her sister Emily—her depression, agoraphobia, and self-harm—is an act of psychological projection. The narrator has split her own psyche, assigning the traumatized, self-destructive parts of herself to the external figure of “Emily,” while inhabiting the role of the capable caregiver, effectively becoming her own caretaker. This psychic division is a dissociative state essential for the narrator’s survival—after killing her sister Elizabeth in a deliberate automobile collision, Emily Rooth unconsciously takes on her deceased twin’s identity, convincing herself and everyone around her that she is Elizabeth because she cannot face the pain of having killed her twin.
The novel withholds this information until the final chapters, forcing the reader to learn that the identity of “Elizabeth” is a falsehood at the same time that the narrator does. Early events are thus interpreted through the lens of Emily’s deception. The intimate way the narrator describes tending to “Emily’s” wounds, initially framed as an act of selfless care for her sister, is later reframed as a symbolic act of self-care by proxy. When she states, “I understood why she crucified herself” (4), the line functions as an unconscious moment of self-recognition. This narrative strategy forces the reader to experience this fragmented identity from within the delusion, making the eventual revelation a shattering of a shared reality.
The recurring motif of cutting and scars serves as the most visceral manifestation of the narrator’s internal state, grounding abstract psychological torment in the physical body. These chapters detail the act of self-harm with a precision that underscores its ritualistic importance. The narrator provides a clinical inventory of Emily’s wounds, describing “dried blood smeared all over her legs like crusted trails of rust” (3). By attributing this behavior to her twin, the narrator externalizes the theme of Self-Harm as a Manifestation of Psychic Pain. The flashback to their adoption party offers a constructed origin for this self-harm, linking it to the trauma of maternal abandonment. This fabricated memory is a crucial element of the delusion, providing a logical, albeit false, explanation for the physical evidence of pain on her body. The narrator’s claim that she could not follow through on her own threat to cut herself reinforces the psychological split; the “Elizabeth” persona is defined by her inability to perform the acts of self-punishment that the repressed “Emily” identity requires. This dynamic establishes the body as a primary site of trauma, where scars function as a physical text telling a story of guilt and pain that the narrator’s conscious mind cannot yet access.
The novel’s non-linear narrative structure, which interweaves a volatile present with curated flashbacks, illustrates The Importance of Confronting the Truth. The narrator deploys memories strategically to build a coherent, though ultimately false, history that justifies her current reality. The flashback to the sexual abuse perpetrated by their mother’s “special friends” (23) establishes a shared trauma that logically explains the twins’ intense codependency. Likewise, the memory of the fire they started frames them as a unit defined by their mutual survivorship. These flashbacks function as manufactured evidence presented to convince both the reader and the narrator herself that her current situation is the inevitable outcome of their shared past. The narrative omits the trauma of the car crash—a memory the narrator has repressed—substituting other legitimate traumas to create a plausible yet misleading timeline. This structural choice demonstrates that memory is not a passive record but an active process, particularly in the aftermath of trauma, where the mind will select and reorder experiences to construct a sustainable narrative.
The motif of locked rooms and closed blinds creates a geography of psychological imprisonment. The narrative opens with the narrator entering a darkened bedroom, a space that directly echoes the childhood trauma of being locked away by their mother. This enclosed setting symbolizes the stasis of unresolved trauma. The apartment itself becomes an extension of this psychological state: a fortress against the outside world and a prison for the narrator’s fractured psyche. When Emily panics at the suggestion of Thomas visiting, her cry of, “This is our place, ours!” (44), underscores the apartment’s role as a sanctum for their shared delusion. The introduction of Thomas functions as a critical narrative catalyst, representing the possibility of a future outside this hermetically sealed world. His character, marked by kindness and a straightforward Christian faith, serves as a foil to the narrator’s dark internal world. His presence forces a confrontation with the unsustainability of the delusion, creating a tension between isolation and connection that ultimately triggers the collapse of the narrator’s reality.



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