When Allan Song's ex, Mac, shows up to model for the life drawing class Allan teaches, he turns everything upside-down. Mac is still as infuriatingly attractive as when Allan first met him—and still trying to figure out where he fits on the gender spectrum. He's more than a little out of control, and he's taken some stupid risks that have come back to haunt him. If they're going to get back together, Allan wants a real relationship—but for that, he and Mac will need to look below the surface.