Full Movie Recap & Explained

Splice

2009 — Sci-Fi Horror

"They created something new. They named her Dren. They called her their experiment. She had other ideas."

Director: Vincenzo Natali Runtime: 1h 44m IMDb: 5.8 / 10 Genre: Sci-Fi / Horror

What Is Splice (2009) About?

Splice is a deeply uncomfortable film that earns its discomfort by being genuinely intelligent about the questions it raises. Two genetic engineers — Clive (Adrien Brody) and Elsa (Sarah Polley) — are engaged in legitimate pharmaceutical research splicing animal DNA to create organisms that produce medically useful proteins. Discreetly, they go further — splicing in human DNA to create a new hybrid creature they name Dren.

Dren develops at astonishing speed — physically, intellectually, and emotionally. The film explores the increasingly complicated ethics of her creation: was she made? Was she born? Is she their child? Their experiment? Their property? And what obligations, if any, do her creators owe her? These questions build to one of the most disturbing third acts in sci-fi horror.

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Movie Recap — Splice (2009)

Splice (2009) — Complete Plot Recap & Explained

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Full Spoilers Ahead. This recap covers the entire film including the disturbing ending. The film contains content some viewers may find deeply upsetting.
1
Dren Is Born
Setup — The Experiment Becomes Something Else

Clive and Elsa are celebrities in the genetic research world — young, brilliant, admired. Their employer wants to move directly to proteins. Elsa pushes for one more experiment. Against all ethical frameworks, all institutional approval, and Clive's better judgement, they splice human DNA into their organism and bring a new life into being.

Dren grows at extraordinary speed. What begins as an ambiguous blob becomes recognisably humanoid within weeks — a creature with a woman's face, bald head, bent backward legs, a barbed tail, and eventually wings. She is clearly intelligent. She shows curiosity, attachment, frustration, and desire. Elsa, despite her professed scientific detachment, treats Dren as a child — naming her, bonding with her, projecting onto her.

The Hidden Ingredient: Late in the film it's revealed that Elsa used her own DNA in the splice. Dren is not just part human — she is part Elsa. This explains the depth and wrongness of the relationship that develops, and implicates Elsa completely in everything that follows.
2
The Experiment Becomes Dangerous
Confrontation — Dren Grows Beyond Control

Moved to a remote farm for secrecy, Dren's development accelerates. She can communicate using letter tiles. She develops complex emotional states — including destructive ones. She kills the farm cat. She develops sexual attraction to Clive. When Elsa cuts off Dren's tail (in a scene that functions as a disturbing parenting metaphor), Dren's trust in her is destroyed.

Clive and Dren have a sexual encounter — something the film handles with clinical discomfort rather than titillation. When Elsa discovers this, the already fractured relationships collapse entirely. Elsa's response is to treat Dren with total cruelty — cutting her hair, restraining her, reducing her to a pure research subject.

The Sex Change: Dren appears to die. At her burial, Dren emerges from the ground — now male, having undergone a sex change (many aquatic and amphibian DNA donors have this capacity). The creature is now more physically powerful, less emotionally attached, and genuinely dangerous.
3
The Horror of What They Created
Climax & Ending Explained

Male Dren kills Clive and sexually assaults Elsa before being killed himself. The film ends with Elsa at a corporate meeting — she is pregnant with Dren's child, and the pharmaceutical company is fully aware and interested. They offer her a substantial payment to carry the child to term and allow the genetic material to be studied.

Elsa agrees. The film's final shot — her empty expression, the deal made — lands the thesis completely.

The Ending Explained: Elsa's agreement to carry and surrender the child mirrors exactly the exploitation of Dren that she and Clive performed. She was once the scientist treating a living being as property. She is now the vessel. The cycle of exploitation closes on itself — and she accepts it. The film suggests that ambition, trauma, and complicity exist in a loop that purely individual ethical decisions cannot break.

Characters & Cast Breakdown

Elsa Kast
Sarah Polley
The film's most complex character — driven, maternal, brilliant, and capable of profound cruelty. Polley navigates a character who is simultaneously the film's moral anchor and its greatest ethical failure.
Clive Nicoli
Adrien Brody
The reluctant partner whose moral hesitations are consistently overridden by love for Elsa and his own scientific curiosity. His weakness makes him complicit in everything, including his own death.
Dren
Delphine Chanéac
An extraordinary performance achieved largely through physical expression and prosthetics. Dren is simultaneously sympathetic and terrifying — the film never allows a single clean response to her existence.

Themes & What the Film Is Really Saying

Splice is the most intellectually serious film about genetic ethics in the horror genre — asking not "could we?" but "what are we owed by what we create?"

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Playing God
The Frankenstein story reborn for the genomic era. The film is specifically interested in what responsibilities are created by the act of creation — and what happens when creators refuse to accept them.
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Parenthood & Ownership
Elsa treats Dren as both child and property simultaneously — the film argues these are incompatible positions, and that the contradition between them is what drives the tragedy.
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Exploitation's Cycle
Elsa ends the film in the position Dren occupied — a reproductive vessel valued for what she can produce, not what she is. The film closes its ethical circle with clinical precision.
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Ambition Without Limits
Elsa and Clive's scientific ambition, entirely unchecked by institutional oversight or personal ethical restraint, produces something genuinely new and genuinely catastrophic. The film is a case study in what happens when curiosity has no brakes.

Verdict — Is Splice (2009) Worth Watching?

7.0
/ 10

Challenging, Disturbing Sci-Fi Horror with Genuine Intellectual Courage

Splice is not an easy watch. It earns its discomfort with genuine thematic ambition and two performances at their career best. It holds a 74% on Rotten Tomatoes for critics who appreciated what it was attempting. The final act is deeply unpleasant — but the film is making points, not wallowing. Approach with appropriate expectations and you'll find something genuinely memorable.

Frequently Asked Questions

What is Splice (2009) about?
Splice follows genetic engineers Clive and Elsa who secretly splice human DNA with multiple animal genomes to create a hybrid creature they name Dren. Dren grows rapidly in intelligence and physicality, and her increasingly complex emotional and sexual development creates a situation her creators are completely unprepared for.
How does Splice (2009) end?
Male Dren kills Clive and assaults Elsa before being killed. Elsa is pregnant as a result. The pharmaceutical company offers her a substantial sum to carry and surrender the child for research. She agrees — becoming, in the film's most devastating irony, the exploited vessel that Dren was.
Why does Dren change sex in Splice?
Dren's genetics include DNA from multiple animal species, some of which (certain amphibians and reptiles) are capable of sequential hermaphroditism — changing sex under specific conditions. After appearing to die, Dren reanimates as a male, more physically powerful and more aggressive form.
Is Splice (2009) worth watching?
Yes, with appropriate warnings. Splice is genuinely intelligent about its subject matter and holds a 74% on Rotten Tomatoes from critics who appreciated its ambition. The final act contains deeply disturbing content. Approach with expectations set accordingly and you'll find a rare horror film with serious things to say.
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