Some people are made for love, and some must learn that they are.

Delia, a high-flying geneticist and lecturer at Renwood University in Northern England, only has one goal: to get the permanent position she's been working toward for years. Once that's secured, she's ready to execute step two of her life plan: to have a baby with the help of a sperm donor. Love and marriage are not for her, and the best solution is to go it alone. It's the sensible person's choice, obviously.

Enter Gabriel. He's an earl, but unfortunately so skint, he may be about to lose his ancestral home. He offers to become Delia's sperm donor, and she couldn't be more delighted, because he's hot, kind, and most importantly, has a great genetic profile. Together, they cook up a plan to become co-parents which only allows for platonic feelings of friendship. And a plan is there to be followed to the letter, right?

But since life is more complicated than the best laid plans, things slowly spiral out of control when Gabriel loses his heart, and Delia has to decide whether to risk hers.