A teenage boy fatally overdoses at a wild party. In order to find the drug supplier, Dan 'sweats out' the heroin-addicted host of the party in an attempt to gain information.

The philanthropist who put Dan through college is found shot to death, and Dan doesn't buy the 'scared burglar' theory.

Dan tries to help a black activist accused of the murder of a councilman's sister.

Dan wonders if the murder of a soldier who recently returned from Vietnam has anything to do with his marriage to a Vietnamese girl.