A prostitute is murdered on the streets of a tough, low-income neighborhood. A diabetic retired boxer who knew her is appalled by the lack of interest shown in the case by the police or anybody else in the neighborhood, and decides to investigate the case himself.
The Bar Association disbars attorney Tyler Cradon when it appears he was implicated in the murder of a prominent vice crusader. Cradon, not wishing to be without an income, is impressed by the way Joan Carroll handled a small-town murder, poses as a real estate agent and offers to get her into a law firm of a friend of his. Placed in the office of Roberts, running a front for Cradon, Joan is taught every trick of the trade.
While on shore leave to celebrate his first anniversary, Lt. Peter Duluth takes his wife, Iris, to a Los Angeles hotel but is turned away. When mysterious Colette offers them her suite, the young couple becomes entangled in a murder plot. Aided by two PIs, Peter and Iris find two corpses and are desperate to locate Colette before she becomes the next victim, but the killers are one step ahead.
Private eye P.J. is reluctant when he gets a new job: he shall protect Maureen Preble, mistress of millionaire Orbeson, mainly from attacks by his wife and her greedy family. In truth Orbeson plans a deadly intrigue in which P.J. is to play a central part. Meanwhile P.J. falls in love with Maureen and Orbeson’s money.
A draughtsman framed for espionage falls into the hands of the enemy agents who set him up.
Wisecracking female private eye Belinda Prentice has to put in a lot of overtime when her first client is murdered. Following the clues to an apartment house chock-full of suspicious characters, Belinda predicts-correctly, as it turns out–that there’ll be several more killings unless she can pinpoint the guilty party and ascertain his or her motives. Meanwhile, her police-inspector father wishes aloud that Belinda would give up the p.i. business and settle down with a nice young fellow.
A detective’s search for a carnival mind reader’s missing sister is complicated by a string of mysterious murders.
A radio columnist is threatened by gangsters and later murdered during a broadcast. A detective sets out to find the killers.