On an evening like any other, a mysterious woman moves into room Four-One-Three of an apartment building in a new city with the firm determination to start a fresh life here. Quiet, deadly, and haunted by a violent past, she quickly finds herself pulled between the desire to connect with another human being and the desire to fall back into her darker side, even as fate begins to set in motion a series of events that will lead to a cataclysmic encounter with a familiar and vengeful figure, someone she wished she could forever forget.