Imaginary

He watches them, follows them, and becomes a part of their lives. He enters their homes and brutally murders them and then slips back into the shadows like he never existed. He leaves no clues or evidence-until one witness survives.
Detective Alice Forbes has been hunting him for two years, and now it seems she has him right under her fingertips. Will she be able capture the monster who has been killing women in her city before he slips into the shadows for good?