Sixteen-year-old Dylan has never met her father. She knows that her parents were just teenagers themselves when she was born, but her mother doesn't like to talk about the past, and her father, Mark, has never responded to Dylan's attempts to contact him. As far as Dylan is concerned, her family is made up of her mother, Amanda; her recently adopted younger sister, Karma; and maybe even her best friend, Toni.

And then, out of the blue, a phone call: Mark will be in town for a few days and he wants to meet her. Amanda is clearly upset, but Dylan can't help being excited at the possibility of finally getting to know her father. But when she finds out why he has come—and what he wants from her—the answers fill her with still more questions. What makes someone family? And why has her mother been lying to her all these years?