It's Greg's birthday. His 30th birthday. The birthday that will determine the rest of his life.
 
At midnight, there is the chance Greg will simply cease to exist. With that in mind, he has hired Joe, an Ephemera, to accompany him on what might be his last day on earth.

What starts as a rented relationship soon becomes more complicated. Is it possible to fall in love in less than 24 hours? Is there a point if one of them might not be alive at midnight?
 
Greg can only be certain of one thing:
 
the clock is ticking.

-30- is a gay sci-fi romance book written by Clinton W. Waters.  It follows Greg, who, having reached 30 years old, may disappear at midnight.  He has hired Joe to spend what might be his last day with him.