Gregg Olsen's 'If You Tell' plunges readers into the chilling true story of the Knotek sisters, Nikki, Sami, and Tori, and their unimaginable ordeal under the tyrannical rule of their mother, Michelle Knotek. This gripping narrative exposes a horrifying chronicle of abuse, psychological torment, and shocking murders committed within the confines of their own home. Despite the pervasive terror and the unspoken secrets that bound them, the sisters' unbreakable bond became their sole lifeline. Olsen meticulously details their fight for survival, ultimately revealing the profound strength of sisterhood in the face of unimaginable depravity and the courageous quest for justice and freedom from their past.