The second season of the anthology series will feature a new cast and a storyline that draws inspiration from a story collected from the Brothers Grimm, The Singing Bone, as well as real-life murder cases. This season of Sacred Lies follows Elsie as she searches for the family she never knew after being abandoned as a child. The search leads her to her father, Peter, an inmate who may be guilty of more than the crimes he's currently incarcerated for and Harper, a telemarketer turned arm-chair detective with an obsessive hobby of searching for unidentified murder victims.

The Kevinian cult has taken everything from seventeen-year-old Minnow: twelve years of her life, her family, her ability to trust. And when she rebelled, they took away her hands, too. Now their Prophet has been murdered and their camp set aflame, and it's clear that Minnow knows something—but she's not talking. As she languishes in juvenile detention, she struggles to un-learn everything she has been taught to believe, adjusting to a life behind bars and recounting the events that led up to her incarceration. But when an FBI detective approaches her about making a deal, Minnow sees she can have the freedom she always dreamed of—if she's willing to part with the terrible secrets of her past.