The instant New York Times Bestseller (January 2018)! "A fiendishly smart cat-and-mouse thriller" —New York Times Book Review"Buckle up, because you won't be able to put this one down." —Glamour "Jaw
"When Jessica Farris signs up for a psychology study conducted by the mysterious Dr. Shields, she thinks all she'll have to do is answer a few questions, collect her money, and leave. But as the quest
