Tek Money

In Tek Money, Jake Cardigan tries to relax. But as he enjoys a rare night out at the theater, his son Dan has a frightening experience at the Cardigans' beachfront home. A seemingly deranged man, muttering to himself about nightmare visions that torment him, comes looking for Jake - and then dies suddenly, as Dan tries to find out what he wants.
So begins an unwelcome sequence of events. First Dan is accused of murdering the man. Once the police realize that accusation is ridiculous, suspicion falls on Jake: the dead man is Peter Traynor, a Tek addict, a friend of Jake's from the bad old days, when the drug had a strong hold on them both. The murderer did Traynor in with a Tek "sizzler," a powerful chip that plugs directly into the user's brain, starts by giving him wonderful visions, and ends by producing uncontrollable hallucinations. Traynor has literally died of fear.
Jake had not seen Traynor in years, but the police are still suspicious. In the meantime, it appears that everybody else in Traynor's past wants Jake's help in solving the crime. The dead man's sister, who has no money but does have a tremendous chip on her shoulder, wants to hire Jake - as long as somebody else pays. The dead man's ex-wife, a mysteriously wealthy woman, also wants to hire Jake, and she'll pay plenty - but it isn't exactly clear that a solution to the crime is what she wants for her money. Jake knows that his own good name is on the line until he finds the real killer.