Last week A24 had the internet abuzz – the company released a mysterious trailer for what was thought to be for an upcoming science-fiction feature film. Mystery solved.

The trailer is not for a feature, but a short called Toru, directed by Jonathan Minard and Scott Rashap, that is set to premiere in the Shorts Program 1 at the 2017 Sundance Film Festival.

With a science fiction undercurrent, Toru centers on the story of a baby boy, named Toru, born with a fatal lung condition. As he only has a few days to live Toru’s parents sign him up for a trial experiment that would simulate a full life in a matter of days.

The film follows Toru’s dream-like life simulation as a boy named Todd growing up in a New England suburb, and concludes in futuristic Japan.