If She Only Knew, introduces the Cahills, a wealthy San Francisco family - rich in money, twisted secrets, and hidden agendas. Now at the center of their tangled world is Marla Cahill - a woman with no memory of who she is, what she’s done, or why she could be the next to die... It begins on a dark stretch of highway. Two vehicles swerve and crash - leaving one woman dead and another in a coma. When the surviving woman awakens, her memory is gone and her face has been reconstructed. Her family tells her that her name is Marla Cahill - but they’re all strangers to her.

A WOMAN WHO WANTS TO GET EVEN...The first victim is pushed to her death. The second suffers a fatal overdose. The third takes a bullet to the heart. Three down, more to go. They’re people who deserve to die. People who are in the way. And when she’s finished, there will be no one left...WILL DO WHATEVER IT TAKES FOR REVENGE...Cissy Cahill’s world is unraveling fast. One by one, members of her family are dying. Cissy’s certain she’s being watched. Or is she losing her mind? Lately she’s heard footsteps when there’s no one around, smelled a woman’s perfume....

All her life, she’s been the girl who survived. Orphaned at age seven after a horrific killing spree at her family’s Oregon cabin, Kara McIntyre is still searching for some kind of normal. But now, twenty years later, the past has come thundering back. Her brother, Jonas, who was convicted of the murders, has unexpectedly been released from prison. The press is in a frenzy again. And suddenly, Kara is receiving cryptic messages from her big sister, Marlie—who hasn’t been seen or heard from since that deadly Christmas Eve.

One question, a split-second decision, and Brian Darby lies dead on the kitchen floor. His wife, state police trooper Tessa Leoni, claims to have shot him in self-defense, and bears the bruises to back up her tale. For veteran detective D. D. Warren it should be an open-and-shut case. But where is their six-year-old daughter?

Twenty years ago, wild child Jessie Brentwood vanished from St. Elizabeth's high school. Most in Jessie's tight circle of friends believed she simply ran away. Few suspected that Jessie was hiding a shocking secret - one that brought her into the crosshairs of a vicious killer.