Sierra Johansson struggles to make her dysfunctional marriage to Connor work despite his cheating and reneging on a promise to start a family. When she realizes she's at a breaking point, she takes control of her life and secretly gets pregnant via artificial insemination using Byron's, a married long-term friend, sperm. She and her best friend show up at her husband's mistress' place while the lovers are in the middle of the act, and she snaps. Not long after that, Sierra divorces her husband.
Distrust of men and single-parenting responsibilities challenge Sierra for a couple of lonely years. That's until she runs into Byron, who she hasn't seen since she told him she had conceived. Connor sees Sierra and Byron together and realizes the unmistakable similarities in Byron and their son, Aubrey. It triggers his Narcissistic Personality Disorder and he goes into a rage. He then embarks upon a terrifying path of revenge.
Near the end of the book Connor snatches Sierra's son from her arms. Sierra and Byron chase Connor to the regional airport, but they arrive too late. Stunned, they watch as Connor's plane ascends into the sky, taking their son with him. Because of Connor's influence with the law, Sierra and Byron take the law into their own hands to get their child back and to get rid of Connor.
When Sierra finally gets intimate with Byron, she experiences the best intimacy of her life. But afterwards she discovers his male anatomy was tragically traumatized during the car accident that took his wife's life. After their tearful discussion about this sensitive subject, Byron proposes marriage to her. Will she accept?