Detectives Briscoe and Logan investigate the murder of David and Eileen Lerner, who were were found stabbed to death in their bed. The killer entered the house through a downstairs window and even used a knife from the kitchen to commit the crime. The Lerners had lived there for only a year, and the police can find no one who disliked or had a grudge against them. When the detectives learn that the house previously belonged to a high-profile divorce attorney, Warren Bartlett, they think a revenge-seeker (not knowing he'd moved) may have been trying to kill him.
—garykmcd