From the national bestselling author of In My Dreams I Hold a Knife and Midnight is the Darkest Hour comes a chilling, compulsive story of five amateur sleuths, whose hunt for an elusive killer catapults them into danger as the world watches.

It's the most famous crime in modern history. But only she knows the true story.

After the unexpected death of her father, college student Jane Sharp longs for a distraction from her grief. She becomes obsessed with true crime, befriending armchair detectives who teach her how to hunt killers from afar. In this morbid internet underground, Jane finds friendship, purpose, and even glory...

So when news of the shocking deaths of three college girls in Delphine, Idaho takes the world by storm, and sleuths everywhere race to solve the crimes, Jane and her friends are determined to beat them. But the case turns out to be stranger than anyone expected. Details don't add up, the police are cagey, and there seems to be more media hype and internet theorizing than actual evidence. When Jane and her sleuths take a step closer, they find that every answer only begs more questions. Something's not adding up, and they begin to suspect their killer may be smarter and more prolific than any they've faced before. Placing themselves in the center of the story starts to feel more and more like walking into a trap...

Told one year after the astounding events that concluded the case and left the world reeling, when Jane has finally decided to break her silence about what really happened, she tells the true story of the Delphine Massacres. And what she has to confess will shock even the most seasoned true crime fans...