Chase is Dean Koontz's first hardcover novel, originally written under the name K. R. Dwyer and released in 1972, it was revised and reissued in 1995 within Strange Highways.
Plot summary 
Chase is the story about Benjamin Chase. "Bejamin Chase is a retired war hero living in an attic apartment. He is struggling with a drinking habit. One night he rescues a young woman from an obsessed killer. As a result, the killer has changed his target to Chase. He begins phoning Chase and warning that he is out for revenge. The killer, simply named "The Judge" is threatening to kill Chase but the police don't believe him as he has a history of alcohol-related incidents.
Chase is forced to take matters into his own hands and attempts to unmask The Judge himself and end the threat of a vengeful lunatic."