This was an IFComp game that I liked quite a bit more than, it seems, many of the other IFComp reviewers did.
This is almost purely dynamic fiction, a style of interactive fiction where you mostly read a linear narrative, with different special effects adding to the atmosphere and some scattered choices. "My Father's Long Long Legs" is a classic example of the genre.
This story is about a woman whose mother tended a bar and was obsessed with 'polishing the glass'. It's a story about growing up in a broken household, coming to grips with our parents' problems, and the spiral of obsession and addiction.
There's probably a metaphor here, but it's abstract enough not to be clear on what the metaphor is, which makes this game much more effective for me.