Riley Sager, whose real name is Todd Ritter, is an acclaimed author known for his gripping thriller novels. He has gained widespread recognition under his pseudonym Riley Sager, as well as under another pen name, Alan Finn. Sager's writing career took off with his groundbreaking thriller, Final Girls, which not only won the ITW Thriller Award for Best Hardcover Novel but also achieved international success by being published in more than thirty countries.

Following the success of Final Girls, Sager continued to captivate readers with a series of thrilling works, including The House Across the Lake and Survive the Night. His most recent novel, The Only One Left, is set to intrigue his audience once again with its release in June. Outside of his writing, Sager is a native of Pennsylvania and currently resides in Princeton, New Jersey. His interests extend beyond literature; he is an avid reader, a cooking enthusiast, and a frequent moviegoer. Among his top film choices are classics like Rear Window, Jaws, and the iconic Mary Poppins.