Dan August

Dr. Michael Serling was apparently the intended recipient of a bottle of poisoned whiskey that killed two derelicts. But Serling's strange refusal to cooperate places him and the case in a different light.

The turmoil within a group of revolutionaries begins to surface as Dan searches for one of the members, who is suspected of murder. The trail leads to the suspect's paramour, a wealthy matron who supplied his group with guns.

August is searching for the person who lethally drugged boxer Eddie Rude, but he hits a major snag when his quarry becomes a second murder victim.

Joanne Fillmore is found murdered next to a train station and the investigation leads August to her former employer Lawrence Merrill.

When racecar driver Gabe Redfern is pulled out of the ocean in his car, it appears to be a tragic accident. But August believes otherwise having been in an accident with Redfern recently.

Dan August goes after the killers who murdered his friend during a robbery.

Test driver Cory Davis is fired from his job, his boss is shot and Cory is accused of doing the shooting. His college friend Charlie Wilentz gets involved to help solve the shooting.

Dan angrily investigates the rape and murder of a young woman who had been receiving obscene telephone calls.

A judge takes the life of an alleged assassin, claiming self defense, and trying to convince August that the threat was real. Only the evidence seems to show that the jurist may be exhibiting signs of paranoia.

A sniper has taken out the lone witness to the murder of an Assistant District Attorney's wife, leaving August with little to go on and the ADA as the suspect.

Sherry Manders was raped and then murdered and August gets the case. Only his list of suspects keeps shrinking, one with an iron-clad alibi, and the rest are being killed.

After the murder of a socialite during a social event, it turns out that Police Chief Untermeyer was the last one to speak with her and is now the "chief" suspect.

Multiple suspects and numerous motives pile up after a decorated veteran is murdered.

Dan is investing the death of a psychiatrist whose patient happens to be running for Senate and the medical files of the candidate have suddenly gone missing.

A university professor known for his constant trouble-making is dismissed by the college's president, who promptly ends up murdered.

The wife of a multi-millionaire is now the principal suspect in the murder of her lover.

August learns that if you don't keep your woman happy, you may end up dead, after he uncovers two women who murder their lovers just to be free of them.

Can August still do his job and look for a murderer objectively, when his colleagues think the most likely suspect is one of Dan's closest friends?

The murder of a tenant in a singles apartment house points to motives of jealousy and blackmail, and a choice of likely suspects. High on the list is the man's jilted girlfriend, the wife of a close friend of the police chief.

The president of a local workers union is murdered and Dan August uncovers evidence that points to another union big wig who wanted the man's position.

A distraught newspaper columnist takes matters into his own hands when he feels that the police department is handling his daughter's murder investigation ineptly.

When militant black leader Jimmy Barlowe is accused of murdering the sister of a white councilman, August can't understand why he is refusing any help to acquit him of the crime.

August can't get an ex-priest to violate the sanctity of the confessional even though the father took the confession of a killer.

Alexander Venable, a rich philanthropist who paid for Dan's college education, has been murdered, and the field of suspects include a brother, a daughter, her boyfriend and the old man's wife, all who had reasons to want him dead.

After 16-year-old Joe dies of a heroin overdose, Dan August tries to find the seller of the heroin and bring him in before anymore young people meet the same fate.

Racial feelings, already running high because of a farm workers' strike, surge toward the boiling point after a Mexican-American child is killed in a bus crash and the investigation reveals a severed rod in the engine.