Before I Go to Sleep (2014) Ending Explained

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By Max Framewell
July 01, 2025

TL;DR:
Before I Go to Sleep is a psychological thriller about Christine Lucas, a woman with anterograde amnesia who wakes up every day with no memory of her past. The film's ending reveals that her husband, Ben, is actually her attacker who caused her memory loss, while the man she believed was her doctor, Dr. Nasch, is her true husband. In a climactic confrontation, Christine kills Ben in self-defense and reunites with her real husband and son. The film ends with Christine regaining some memories, suggesting hope for recovery, though her condition remains fragile.


Detailed Explanation of the Ending

The ending of Before I Go to Sleep is a tense and emotionally charged resolution to Christine's harrowing journey. Throughout the film, Christine (played by Nicole Kidman) relies on a video diary to piece together fragments of her life, guided by Dr. Nasch (Mark Strong), who claims to be her neurologist. However, the shocking twist reveals that Dr. Nasch is actually her real husband, while Ben (Colin Firth), the man she wakes up beside every morning, is the one who brutally attacked her years earlier, causing her memory loss. This revelation recontextualizes the entire narrative, as Ben has been manipulating Christine to maintain control over her.

The climax occurs when Christine finally remembers the truth: Ben is not her loving husband but a violent ex-lover who assaulted her after she rejected him. In a desperate act of self-preservation, Christine stabs Ben with a knife during a physical struggle, killing him. This moment is cathartic but also tragic, as it underscores the extent of Ben's deception and the trauma Christine has endured. The arrival of the real Dr. Nasch-her actual husband-brings a bittersweet resolution, as Christine is reunited with him and their son, whom she had forgotten due to her condition.

The film's final scenes focus on Christine's fragile recovery. She begins to regain some memories, including those of her son, symbolizing hope for her future. However, the cyclical nature of her amnesia looms over the ending, leaving the audience to wonder whether her progress will persist or if she'll wake up the next day with her memories erased once more. This ambiguity adds a layer of realism to the story, as anterograde amnesia is a lifelong condition with no easy cure. The film closes on a cautiously optimistic note, with Christine embracing her family but still vulnerable to her condition.

Unresolved Questions and Possible Answers
1. Will Christine's memory improvements last?
- Possible answer: The film suggests partial recovery is possible, but her condition may never fully heal.
- Alternative: Her progress could be temporary, and she might relapse into complete amnesia.

  1. How did Ben maintain his deception for so long?

    • Possible answer: Christine's trust in him, combined with her daily memory reset, made it easy for Ben to manipulate her.
    • Alternative: Ben may have isolated her from outside help, ensuring no one could reveal the truth.
  2. What legal consequences follow Ben's death?

    • Possible answer: Christine likely won't face charges, as it was clearly self-defense.
    • Alternative: An investigation could unearth more of Ben's crimes, bringing closure to other victims.

Personal Opinion on the Ending and the Film
The ending of Before I Go to Sleep is satisfying in its emotional payoff but also deeply unsettling due to the psychological horror of Christine's situation. The twist is well-executed, with Colin Firth's performance as Ben adding layers of menace to a character initially presented as sympathetic. Nicole Kidman's portrayal of Christine's vulnerability and resilience is compelling, making the finale both heartbreaking and empowering. However, the film's reliance on amnesia tropes can feel somewhat contrived, and some plot elements (like Dr. Nasch's risky deception) stretch believability. Despite these flaws, the ending's rawness and the moral ambiguity of Christine's actions elevate it above standard thriller fare. The unresolved question of her future recovery lingers, leaving a lasting impact.

Overall, Before I Go to Sleep is a gripping, if imperfect, thriller that explores memory, identity, and survival. The ending delivers a powerful conclusion to Christine's nightmare while acknowledging that some wounds-both physical and psychological-may never fully heal.