What happens in “Be Right Back”?
“Be Right Back” is the first episode of the second series of Black Mirror. It aired on Channel 4 in the UK on 11 February 2013. Charlie Brooker wrote it and Owen Harris directed it. Hayley Atwell plays Martha and Domhnall Gleeson plays her partner, Ash.
Early in the episode, Ash dies suddenly. A friend signs Martha up for a service that studies everything Ash wrote and shared online, then imitates him. At first it only sends messages. Later it can speak on the phone in his voice. Finally the company offers something far stranger: a body. The episode is less interested in the gadgets than in how Martha feels about each step.
In many countries the episode now streams on Netflix with the rest of the series. We will not describe the ending here.
Stage by stage: what exists in 2026?
| Stage in the episode | Exists today? | Real-world example | Main caveat |
|---|---|---|---|
| Text chat learned from his messages and posts | Yes | A memorial chatbot built in 2016 from a friend’s text messages; GPT-3 based simulations in 2020 to 2021 | It can invent things the person never said |
| Phone calls in his voice | Partly | Voice models that imitate a speaker from short recordings, shown by Amazon in 2022 and Microsoft researchers in 2023 | Consent, and the risk of voice-cloning scams |
| A body that looks and acts like him | No | None | Humanoid robots cannot pass as a specific person |
Text: the part that is real
Large language models can be guided by someone’s past messages so that replies borrow their phrases, rhythm and humour. In 2021 the San Francisco Chronicle described how Joshua Barbeau used Project December, a site built on GPT-3, to simulate conversations with his late fiancée. The result can feel startlingly familiar. It can also be wrong, because the model fills gaps with guesses.
Voice: possible, and risky
In June 2022, Amazon demonstrated an Alexa feature that read a story in a child’s late grandmother’s voice, saying it needed less than a minute of audio. In 2023, Microsoft researchers described a model that could imitate a voice from a three-second sample, and later said they had no plans to release its successor publicly because of misuse risks. Our comparison of voice clones and text clones explains the trade-offs.
A body: still fiction
No company sells an android built from a person’s data that could live in your home and pass as them. Humanoid robots exist, but they look and move like machines.
The real story it echoed
In November 2015, Roman Mazurenko died in Moscow. His close friend Eugenia Kuyda, co-founder of the AI start-up Luka, gathered his old text messages and asked friends and family for more. Her team used them to build a memorial chatbot, described by Casey Newton in The Verge in October 2016.
According to The Verge, Kuyda watched “Be Right Back” after Mazurenko died, and her feelings were mixed. She wondered aloud, “But is it really what’s beneficial for us?” Some of his friends found the bot comforting; others felt it was wrong. Her company later launched Replika, a companion chatbot app.
Our guide to griefbots and what research says covers this history and the studies that followed.
What the episode gets right about grief tech
- A copy only knows what it was given. The Ash simulation learns from what he shared, which is not the whole person. Real systems have the same limit.
- Always-available comfort can be hard to step away from. Researchers at Cambridge recommended in 2024 that such products offer easy ways to pause, opt out and retire a simulation with dignity.
- Familiar is not the same as real. The more convincing a simulation feels, the more its small mistakes can hurt.
What the episode leaves out
- Consent. Ash never agreed to be simulated. Messages also contain other people’s words. Our consent guide explains why this matters.
- Privacy. Where the data goes, who can read it and whether it trains models are real questions the episode skips.
- Labelling. The EU AI Act requires that people be told when they are interacting with an AI system, from August 2026. Laws differ by country; this is general information, not legal advice.
Before you try something similar
- Ask yourself what you hope to feel, and what you would do if it made things harder.
- Check that the tool always presents itself as AI, never as the person.
- Prefer tools that never message you first unless you choose that.
- Find out where the messages are stored and whether they are uploaded.
- Think about what the person would have wanted, and how close family feel.
- Keep your own copies of the original messages, whatever you decide.
Choosing not to use any griefbot is a perfectly good choice. Our guide on talking to a loved one who died with AI offers gentle, practical guidance.
Where Memory Clone fits, honestly
Memory Clone resembles only the first stage of the episode. It is a Windows desktop app, currently in alpha, that builds a private AI simulation from chats you export yourself, such as WhatsApp, Messenger, Instagram or Discord, plus notes. It learns how a person wrote to you specifically, and is designed to keep private details from other relationships out of your conversations.
- Text only. It does not use voice notes, photos or video, and it does not clone voices. There is no body and no avatar.
- Not the person. Every clone is presented as an AI simulation. It can echo how someone wrote; it cannot think, feel or remember new things as they would.
- Quiet by default. It never writes first unless you switch on Natural check-ins.
- Local first. Imported originals and the memory index stay on your PC.
If and when you feel ready, the download page explains the alpha. There is no rush.
If you are in crisis or thinking about harming yourself, contact your local emergency number now. You can also reach: UK & Ireland Samaritans, 116 123; United States 988 Suicide & Crisis Lifeline, call or text 988; elsewhere find a free, confidential helpline at findahelpline.com.
Frequently asked questions
Is the AI in “Be Right Back” based on a real product?
No. The episode aired in 2013, before griefbots were available to the public. Real memorial chatbots appeared a few years later.
Can AI really copy a dead person from their texts?
AI can imitate how someone wrote, using their messages as examples. It cannot copy their mind, and it may say things they never would have said.
Did “Be Right Back” inspire Replika?
Not directly, as far as public reporting shows. The Verge reported that Eugenia Kuyda watched the episode after her friend Roman Mazurenko died, and that her feelings about it were mixed. Her memorial bot, and later Replika, grew out of her own loss and her company’s work.
Is it legal to clone a dead person’s voice?
It depends on the country and on how the voice is used. Laws differ by country; this is general information, not legal advice. Consent from the family and the estate is always worth seeking.
Where can I watch “Be Right Back”?
Availability varies by country. In many regions, Black Mirror, including this episode, streams on Netflix.
Sources
Checked on . Third-party products and help pages change often; follow the links for current details.
- Black Mirror (series page) (Netflix)
- Be Right Back (episode article with production credits) (Wikipedia)
- Speak, Memory (Casey Newton, 2016) (The Verge)
- The Jessica Simulation: Love and loss in the age of A.I. (Jason Fagone, 2021) (San Francisco Chronicle)
- Amazon previews Alexa capability that synthesizes a person’s voice from less than a minute of audio (2022) (GeekWire)
- Wang et al., “Neural Codec Language Models are Zero-Shot Text to Speech Synthesizers” (VALL-E, 2023) (arXiv)
- VALL-E 2 project page (Microsoft Research)
- Hollanek & Nowaczyk-Basińska, “Griefbots, Deadbots, Postmortem Avatars” (Philosophy & Technology, 2024) (Springer)
- Article 50: Transparency obligations for providers and deployers of certain AI systems (EU AI Act (Future of Life Institute))
This article is general information, not medical, legal or financial advice. Memory Clone creates an AI simulation from the material you provide; it is not the person.