As Anna's relationship faces uncertainty, she seeks answers in a mysterious research facility. There, scientists conduct unsettling experiments on couples, pushing them to confront the complexities of their connection and the potential for manipulation. Anna's involvement forces her to examine her own feelings and question the nature of love and commitment in an increasingly unsettling environment.
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Read the complete plot breakdown of Fingernails (2023), including all key story events, major twists, and the ending explained in detail. Discover what really happened—and what it all means.
Some years before the film, a controversial test costing one fingernail determines whether couples are truly in love. The test has produced largely negative results, fueling a rise in breakups and divorces.
Anna is an unemployed schoolteacher who lands a job as an instructor at the Love Institute, a one-year-old company founded by Duncan, where researchers and instructors guide couples through relationship-strengthening exercises to help them pass the test. Duncan believes that continued research will yield more positive results. Anna initially keeps the hire a secret from her boyfriend Ryan.
Anna shadows Amir, and the two form a rapport as they guide clients through the exercises. Although Amir claims he and his girlfriend Natasha have also passed the test, his fondness for Anna is clear. Meanwhile, Anna secretly runs experiments with an unsuspecting Ryan to test their love. She eventually confesses the job to Ryan, explaining that she feared taking the job would strain their relationship, even though it clearly did.
After Anna first administers a test to a promising client couple, the result is negative, and she is shaken. Amir tells her she’ll get used to it. At a workplace party, Amir’s girlfriend Natasha is puzzled when Anna mentions his gluten intolerance, prompting Anna to question whether she and Amir feel the same way about each other.
On another day, Amir tears out his own fingernail to calm a nervous client. The client couple receives a positive result, delighting everyone. Seizing the opportunity, Anna secretly tests Amir’s fingernail against her own. The result is 50%, meaning one person is more in love with the other. When she asks Duncan if a person can have a positive result with two different people, he rejects the hypothesis. She later convinces a hesitant Ryan to take the test with her again, and they pass.
The next day, Anna confesses her findings to Amir, who confirms his feelings for her when she suggests that he is in love with her, but she does not love him in return. Later that night, Anna and Amir kiss and sleep together. She voices hesitancy about continuing her relationship with Ryan, stating, “Sometimes, being in love is lonelier than being alone.”
Amir reveals that he began working at the Love Institute because he felt something was wrong after never seeing any positive results. When Anna decides she wants to stay with him, Amir says they shouldn’t be together and they must obey the test. She stays over for the night, but awakens to find herself removing more of her fingernails in his kitchen out of heartbreak. Amir stops her and offers comfort. As they wait for her fingers to heal, they share a quiet, hopeful smile.
Last Updated: October 04, 2025 at 01:17
Still wondering what the ending of Fingernails (2023) really means? Here’s a spoiler-heavy breakdown of the final scene, major twists, and the deeper themes that shape the film’s conclusion.
In the film “Fingernails,” Anna’s journey ultimately reveals that love cannot be fully captured or measured by technology, no matter how advanced it seems. Throughout the story, Anna undergoes tests that analyze her feelings through her fingernails, which tell her how much she loves Ryan, her long-term partner, and how she might feel about Amir, the co-founder of the institute. She learns that her feelings for Ryan are strong—100%—which suggests she still loves him, but her heart is telling her otherwise. Her test results with Amir, which show only 50%, indicate that her love for him is uncertain and incomplete. This discrepancy leads her to question the reliability of the machines and the science of love itself.
Anna’s internal conflict reaches a breaking point when she realizes that the feelings she experiences are real and instinctive, and they can’t be fully understood or validated through science alone. She has an emotional pull towards Amir, which is evident in her actions and the deep connection she shares with him, despite the machine’s uncertainty. Her decision to pull out her fingernails—a painful act—symbolizes her rejection of the artificial attempt to quantify love. It’s her way of asserting that love is a deeply personal and visceral experience that cannot be dictated by tests or technology.
In the final moments, Anna chooses to follow her heart rather than trust the data. She stops trying to analyze her feelings and instead embraces her emotional instincts. Whether she will end her relationship with Ryan or pursue something with Amir is left unresolved, but her act of removing her fingernails signifies her rejection of scientific validation in favor of emotional truth. The ending suggests that love is ultimately mysterious and subjective, and while science can attempt to measure it, it can never fully understand the depth and complexity of human feelings. Anna’s act of pulling out her fingernails is a poignant declaration that love is something that must be felt, not tested.
Last Updated: June 25, 2025 at 09:01
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