College senior Lily Madison is on her own and desperate to pay for her last semester of school. With nowhere to turn, she makes the difficult decision to donate her eggs to a fertility clinic. Sam Parker is also a penniless student who supplements his tuition money by visiting a sperm bank. One day, Lily and Sam meet at the clinic and talk about their secret. They agree that the clinic gives them an odd feeling, as if all is not as it seems. Despite their obvious attraction, Lily and Sam go their separate ways. Twenty years have passed and Lily often wonders if she has a child somewhere in the world. She also thinks a lot about Sam. Now a wealthy entrepreneur, Sam never forgot Lily either, and when he sees her in an airport one day, he falls for her all over again.