Lock Every Door

A dark and twisty thriller from the "New York Times" bestselling author of "Final Girls". When Jules becomes an apartment sitter in an exclusive Manhattan building, she soon finds that all is not what it seems.

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 Universal Pictures and Anonymous Content. A native of Pennsylvania, he now lives in Princeton, New Jersey.