In the Season 2 episode of “Black Mirror,” entitled “Be Right Back,” Hayley Atwell plays Martha, a woman whose husband Ash (Domhnall Gleeson) is killed in a car crash.

Martha's friend signs her up for a service that uses Ash's online profiles to create a virtual version of him, so Martha can engage with a chatbot trained on his online footprint.

Inspired by “Be Right Back,” Eugenia Kuyda, founder of Luka, a messenger app connecting users with bots, built a chatbot trained on texts from her late friend Roman Mazurenko.

Kuyda built a virtual version of Mazurenko using her Telegram app exchanges with him and more than 8,000 lines of text provided by Mazurenko’s friends and family.

These exchanges were fed into a neural network created by Kuyda's AI startup, and the resulting bot was made available to Mazurenko's loved ones and was also added to the Luka app.

While some friends of Kuyda found the bot project disturbing, many others had a positive experience, including Mazurenko's own mother, who revealed her feelings to The Verge.

She shared, “There was a lot I didn't know about my child. But now that I can read about what he thought about different subjects, I'm getting to know him more.”

Kuyda said, “Those messages were about love, or telling him something they never had time to tell him. Even if it's not a real person, there was a place where they could say it.”