It started with a chance encounter at a Halloween party. Nine months later, the real fun began ...

Last Halloween, Romy had a one-night stand with a stranger dressed as Darth Vader. Now she has a baby named Luke. But who is his father?

Because though she and her mystery man shared their most guilty secrets, they didn’t exchange names or numbers. Romy is ready to give up on her search, when old flame Kit comes back into her life, keen to play happy families.

But Kit is hiding secrets of his own, leading Romy to wonder: could he be her dark knight? Or is there another?