Madison Taylor (Merrin Dungey) is a forensic psychologist, spending her days interviewing prison inmates and her evenings with her husband Jeremy. When Jeremy is killed in a home invasion by Francis Tate (Devon Graye), her world begins to turn itself inside out. Madison's fascination with morbid crime begins to gnaw away at her character. She becomes sleepless and now spends her evenings stalking and photographing strangers. She refuses to identify her husband's killer and instead chooses to stalk him for revenge. Now finding pleasure in her thrill-seeking, dangerous life choices, she starts to put herself in compromising situations for arousal. Is her relationship with criminals an excuse for her to rebel or is this the person who has always been inside her?