A double homicide of an older man and his younger lover casts suspicion on both the ex-wife and the former boyfriend of the murdered duo, with the murdered man's son holding the key to the mystery.

A victim's stabbing death in front of a coffee shop leads to one vagrant testifying against another. But the conviction is threatened twice based on the lack of a search warrant for a suspect's home - first an SRO hotel room and second a lean-to in the park.