In the fourth installment of Ana Huang's Kings of Sin series, billionaire heir Xavier Castillo is a charming, easygoing party boy who avoids adult responsibilities to mask his fear of failure and the guilt he harbors over his mother's tragic death. His public image is managed by Sloane Kensington, an ambitious, emotionally guarded, and high-strung publicist who is dealing with her own fractured family dynamics after her ex-fiancé cheated on her with her sister. When Xavier's father's will threatens to strip him of his fortune unless he becomes a CEO by his 30th birthday, Xavier finds a loophole and works to establish a successful nightclub. With Sloane's help, he begins to reinvent his lazy reputation, and as they navigate their professional relationship and personal traumas, the two unexpectedly fall in love.