Riley Sager is the pseudonym of a former journalist, editor and graphic designer who previously published mysteries under his real name. Now a full-time author, Riley's first thriller, "Final Girls," was a national and international bestseller that has been sold in 25 languages. A film version is being developed by Anonymous Content and Universal Pictures. His next book, "The Last Time I Lied," will be published in July. A native of Pennsylvania, Riley now lives in Princeton, New Jersey.