Every year, three million single women in America move into an apartment for the first time. Few of them change the locks . . .

Juliet Devereau can't believe her luck: after weeks of looking for a place to live, she's found a beautiful, spacious apartment overlooking Brooklyn Bridge. It almost seems to good to be true. It is. Over the weeks, Juliet is haunted by a chilling sense of being watched. Strange sounds wake her in the night, the mirror in the bathroom trembles, and doors she thought were shut are open. Then the silhouette of a man standing in her living room makes...