Overview
Mr. Murder is a horror novel by the best-selling author Dean Koontz, released in 1993.
Plot
Bestselling mystery writer Marty Stillwater was recording himself one day when he realized that he was saying "I need..." repeatedly. When he rewound the recording he found that he had been unconsciously repeating "I need" for over 7 minutes. Marty was tense that whole day, when he put the kids to bed though he calmed down considerably and was finally consoled.
Meanwhile, the Killer is roaming the streets before his job. He goes into a bar and leaves with a prostitute to go to a motel. He has sex with her and then murders her because she cannot assuage his frustration. He proceeds to kill his targets and returns to his hotel. That night, still restless, he is drawn for some reason towardsTopeka. Suddenly, he starts saying:
The Killer is attracted like a magnet by some force he doesn't understand to the Stillwater residence. On his way he kills several people; an old couple for a set of clothes and a gas station clerk to steal food and money. When he breaks into the Stillwater house he sees a picture of Marty and believes it to be himself. He observes books authored by Marty and decides they are his. He sees the pictures of the daughters Emily and Charlotte and Marty's wife Paige, he then decides he wants to be the father and husband. He attempts to write a book but cannot and in his frustration he destroys the computer.
From Wikipedia (CC BY-SA 4.0).