Veteran social worker Ellen Moore has seen the worst side of humanity - the vilest acts one person can commit against another. She is a fiercely dedicated children's advocate and a devoted mother and wife. But one blistering summer day, a simple moment of distraction will have repercussions that Ellen could never have imagined.

For 12-year-old Cora Landry and her friends Violet and Jordyn, it was supposed to be an ordinary sleepover - movies and Ouija and talking about boys. But when they decide to sneak out to go to the abandoned rail yard on the outskirts of town, little do they know that their innocent games will have dangerous consequences. Later that night, Cora Landry is discovered on the tracks, bloody and clinging to life, her friends nowhere to be found. Soon, their small rural town is thrust into a maelstrom. Who would want to hurt a young girl like Cora - and why?

Twenty-five years ago, the body of 16-year-old Eve Knox was found in the caves near her home in small-town Grotto, Iowa - discovered by her best friend, Maggie, and her sister, Nola. There were a handful of suspects, including her boyfriend, Nick, but without sufficient evidence the case ultimately went cold.

When pregnant Saffron Cutler moves into 9 Skelton Place with boyfriend Tom and sets about renovations, the last thing she expects is builders uncovering human remains. The remains of two bodies, in fact.

When a tragic accident leaves nurse Amelia Winn deaf, she spirals into a depression that ultimately causes her to lose everything that matters - her job; her husband, David; and her stepdaughter, Nora. Now, two years later, and with the help of her hearing dog, Stitch, she is finally getting back on her feet. But when she discovers the body of a fellow nurse in the dense bush by the river, deep in the woods near her cabin, she is plunged into a disturbing mystery that could shatter the carefully reconstructed pieces of her life all over again.