A highway construction crew finds the body of an old woman. Finucane's initial investigation reveals that her name was Nellie, that she was a recluse, and that she apparently had no friends and no money. So why was she murdered?
Thief is robbing valuables of guests at a variety of large social gatherings. Whenever he gets caught in the act, he violently assaults the witness. Finucane becomes convinced the thief will hit a particular luau next.
When a murder suspect is found dead in an hermetically sealed coffin floating in the sea, Finucane's suspicions turn to the dead man's shady business partner.
A jewel thief poses as a blind man when casing his targets. As part of his disguise, he uses a seeing eye dog which he had earlier stolen from a real blind man.
A man is burglarizing homes during the afternoon when the housewives are out. When some of the housewives return home and catch him in the act, the man violently attacks them.