It's Sky Morgan's 22nd birthday. He's unemployed and just had an awkward dinner with his dad. There wasn't even any cake, and Sky loves cake. Angry and morose, he decides to go out for a drink and randomly chooses the Grotto, a nearby gay bar.

The Grotto's clientele is different from the rest of society in more ways than one. However, they are very kind to Sky. He has a most comforting chat with Everest, an old drag queen, who is the first person ever to understand how awkward family can be. And then she introduces Sky to Slade, a mysterious and attractive young man. The chemistry between them is instant.

But is Slade a young man? He's more different than just being gay. Just how different, Sky finds out during daylight hours far below ground. As Sky's feelings towards his new friend mount, he learns they have more in common than he could possibly imagine.