Fingernails review: Apple’s dark sci-fi comedy turns love into science

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In the future, scientists have figured out how to conclusively determine if two people are in love.
If a couple gets a negative result on the test, they end up splitting up.
The film centers on Anna, a teacher who is in a long-term relationship with her boyfriend Ryan.
Anna starts a new job at The Love Institute, which performs the love tests and offers lessons to prep couples for success.
Anna starts to fall in love with her new co-worker Amir.
The film explores the ways relationships can grow stale or change over time.
It's a slow-burning, darkly funny romance that's pretty rare.