Looking at the actual account, they actually do a bunch of professional, big-name posters, Onward, La La Land, Batman, etc.
And then this shit which can be remade in like five minutes in MS Paint.
On the topic, calling it now:
“It tells the story of the mysterious Sarah, a staff worker, and her interactions with Jason Cormack, a customer who hides a dark secret. As we find out more about Jason’s past and his reasons for being there, we realize that the laundromat is not what it appears to be.
Directed by Pier Paolo Piccoli and Fiona (Nova) Piccoli, this suspenseful tale is approximately 10-12 minutes in length. Visually, the film’s look takes inspiration from the saturated colors seen in Davis Leitch’s “Atomic Blonde” and Ryan Murphy's "Ratched." The laundromat's atmosphere is disquieting and unnerving, emphasizing the contrast between the two main protagonists’ personalities while leaving you questioning what this laundromat really is.”
The laundromat is purgatory/the guy’s personal hell of some sort. That’ll be the big twist attempt.