When the nouveau riche Parker family moves to an exclusive community in the heart of Southern California, they believe it’s their chance at a fresh start. Heather Parker is determined to give her daughters the life she never had. So she signs them up for riding lessons at Rancho Santa Fe Equestrian, where horses are a lifestyle. Heather becomes a “Barn Mom,” part of a group of wealthy women who hang at the stables, drink wine and prepare their daughters for competition. It’s not long before the Parker family is fully enmeshed in the horse world. With the end-of-summer horse show fast approaching, these mothers will stop at nothing to give their daughters everything they deserve. Before the summer is over, lies will turn lethal, accidents will happen --- and someone will end up dead.

Lyla has always believed that life is a game she is destined to win, but her husband, Graham, takes the game to dangerous levels. The wealthy couple invites self-made success stories to live in their guesthouse and then conspires to ruin their lives. After all, there is nothing worse than a bootstrapper. Demi has always felt like the odds were stacked against her. At the end of her rope, she seizes a risky opportunity to take over another person’s life and unwittingly becomes the subject of the upstairs couple’s wicked entertainment. But Demi has been struggling forever, and she’s not about to go down without a fight. In a twist that neither woman sees coming, the game quickly devolves into chaos and rockets toward an explosive conclusion.

Sera loves true crime podcasts. They give her a sense of control in a world where women just like her disappear daily. She’s sure they’re preparing her for something. So when Rachel, her favorite podcast host, goes missing, Sera knows it's time to act. Rachel has always taught her to trust her instincts. Sera follows the clues hidden in the episodes to an isolated ranch outside Rachel's small hometown to begin her search. She's convinced her investigation will make Rachel so proud. But the more Sera digs into this unfamiliar world, the more off things start to feel. Because Rachel is not the first woman to vanish from the ranch, and she won't be the last. Rachel did try to warn her.