【Podcast上更新的遇害懸案，散布全網的驚悚追擊】
當電台主持人West McCray藉陌生的觀眾call-in首次聽到Sadie的失蹤案時，並不以為意，17歲的逃家少女並非什麼少有的事，然而隨著駭人的細節傾洩而出，West決定親自走訪科羅拉多州的冷溪小鎮查明真相。
Sadie的生活從沒順遂過，從小便得自力更生，在封閉的小鎮裡勉強度日，然而在唯一的家人妹妹Matie遇害身亡後，她的人生就此崩解。警方粗劣的搜查一無所獲，這讓Sadie下定決心啟程，要親自循著寥寥無幾的線索，找出兇手替妹妹報仇。
然而，原本希望Sadie若聽到了能對她伸出援手的播客節目，在網路上持續發酵，少女不知去向、兇手也仍逍遙法外，時刻滴答流逝，Sadie是否不知不覺步入險境，而West又能否及時阻止另一樁悲劇的發生？
When popular radio personality West McCray receives a desperate phone call from a stranger imploring him to find nineteen-year-old runaway Sadie Hunter, he’s not convinced there’s a story there; girls go missing all the time. But when it’s revealed that Sadie fled home after the brutal murder of her little sister, Mattie, West travels to the small town of Cold Creek, Colorado, to uncover what happened.
Sadie has no idea that her journey to avenge her sister will soon become the subject of a blockbuster podcast. Armed with a switchblade, Sadie follows meager clues hoping they’ll lead to the man who took Mattie’s life, because she’s determined to make him pay with his own. But as West traces her path to the darkest, most dangerous corners of big cities and small towns, a deeply unsettling mystery begins to unfold―one that’s bigger than them both. Can he find Sadie before it’s too late?
Alternating between Sadie’s unflinching voice as she hunts the killer and the podcast transcripts tracking the clues she’s left behind, Courtney Summers' Sadie is a breathless thriller about the lengths we go to protect the ones we love and the high price we pay when we can’t. It will haunt you long after you reach the final page.
