It's definitely a good watch. It's sub-six minutes and there's no speaking. It's carried by the excellent score and Percy's expressive acting.
Spoilers lol
Here's my interpretation. I agree with other posters that the film is about grief. Percy is credited as Son and Ryan Blakely as Father.
The son is grieving his father who recently passed. He’s very much into the grieving process and unable to move on. The house is probably his father’s, and he hasn’t even begun to go through the items. He’s keeping everything pristine and as his father had it, because he can’t fathom having to sell the house or go through the estate.
He’s holding onto the memories as best he can, but even those are starting to falter. The son’s father’s favourite chair is haunted by a nondescript version of himself. Or perhaps that’s where he found his father dead and it’s a coroner’s sheet over him.
The son sits at the dining room table where he had cherished meals, but the memories are tainted and infested. His favourite sandwich, simply turkey and mayo, is infested with bugs. He loved those times he ate turkey sandwiches with his father, but his death crawls into those memories and ruins them. They turn a happy memory into sadness.
Time seems to drag on while he sits with his memories, nothing really happens. All he can do is let time pass.
Then it’s time for bed, and he rushes to get under the covers so that he can dream, because that’s the only place that feels real enough and isn’t tainted by decay. He falls asleep safely in his father’s arms and it’s the first time we see him relax AND allows himself to cry.
Percy is an incredible actor, even when he doesn’t have any lines. He deserves the accolades he’s received and all the work he’s gotten.