A Cautionary Tale Fear can be a good thing, it can save your life, unless it's used to kill. The fast paced psychological thriller Fear Killer follows Detective Martha Newton who has a shockingly brutal murder to solve. She is dogged in her investigation, but is distracted by her own fear, change -- a new man in her life who seems too perfect. Emily Perrit, timid and married to an abusive husband, has her own fears to work through - no change. Befriended by Martha after an earlier attack, she wants Martha to help her, like a mother. For Martha, Emily's growing desire to be close to her "new" mother becomes another problem, along with the love live of her Detective partner and the self-esteem crisis of her real surrogate daughter, whom Emily believes takes much too much of her mother's time. As more murders occur all of their lives become intertwined. Is one, or more, of them a murderer? Reluctantly, Martha has to put her fears for all of them aside and follow the evidence until it breaks her heart or kills her.