Apparently rejected by women all his life, a loner with a high-power rifle starts on a trail of murder. The police are baffled by the apparently random killings until their psychologist comes up with some ideas.

Mildred Pierce dotes on her daughters while husband Bert looks to Maggie Binderhof for affection. They separate leaving Mildred to raise the girls on her own. Elder daughter Veda goads her mother about their lack of money and in response Mildred proposes opening a small restaurant. Realtor Wally Fay advises her while making numerous rebuffed passes and introduces her to Monte Baragon whose property becomes the first of a chain of restaurants. Mildred has an affair with Monte. Meanwhile, money-hungry Veda pretends to be pregnant by wealthy Ted Forrester in order to bilk his family of $10,000. Mildred tears up the check, is slapped by Veda, and orders her daughter to leave. After time away, Mildred returns to find Veda singing in a cheap club. Veda will return only if Mildred promises luxury, so Mildred agrees to marry Monte in exchange for a third of her businesses. It soon becomes clear that something is going on between Veda and Monte. Mildred learns of this only after Monte has sold out his third of the her business leaving her bankrupt. She goes to Monte's beach house to kill him... Shots ring out, but what really happened?

After a wild night, wealthy Michael Reston's adulterous wife Charleen comes home with her ripe young body barely concealed by a dress in rags; murder results. Top defense lawyer J.G. Blane, whose own marriage exists in name only, arrives in Desert View, Nevada to find the townsfolk and politically powerful Sheriff Hoak distinctly hostile to the Restons. In due course, Blane discovers he's been "taken for a ride," and that quiet desert communities can be deadly...

Death of media magnat Amos Kyne is causing power struggle between his executives. In the meantime New York women become prey of a serial killer. Reporter Edward Mobley is in that circumstances faced with almost impossible missions: to catch the killer, to prevent the media empire from falling into the wrong hands and to save his romantic relationship from break-up.

Tough L.A. private eye Mike Hammer gives a ride to Christina, a frightened young woman he finds running along the road one night. His car is run off the road by unseen thugs. Hammer is knocked out and Christina is tortured in an unsuccessful attempt to get information from her. They are put back into Hammer's car which then is forced off a cliff. Hammer wakes up in the hospital. Velda, his trusty secretary, informs him that Christina is dead. Pat Chambers, Mike's policeman friend, tells him to stay off the case, but Mike thinks it might be a big story--meaning big money for him--because the FBI is interested. He, Velda, and Nick, his garage mechanic friend, start investigating in hopes of finding out why Christina was killed.

In 1938, Walter Neff, an experienced salesman of the Pacific All Risk Insurance Co., meets the seductive wife of one of his clients, Phyllis Dietrichson, and they have an affair. Phyllis proposes to kill her husband to receive the proceeds of an accident insurance policy and Walter devises a scheme to receive twice the amount based on a double indemnity clause. When Mr. Dietrichson is found dead on a train-track, the police accept the determination of accidental death. However, the insurance analyst and Walter's best friend Barton Keyes does not buy the story and suspects that Phyllis has murdered her husband with the help of another man.

Lawyer Joe Morse wants to consolidate all the small-time numbers racket operators into one big powerful operation. But his elder brother Leo is one of these small-time operators who wants to stay that way, preferring not to deal with the gangsters who dominate the big-time.

Mexican Narcotics officer Ramon Miguel 'Mike' Vargas has to interrupt his honeymoon on the Mexican-US border when an American building contractor is killed after someone places a bomb in his car. He's killed on the US side of the border but it's clear that the bomb was planted on the Mexican side. As a result, Vargas delays his return to Mexico City where he has been mounting a case against the Grandi family crime and narcotics syndicate. Police Captain Hank Quinlan is in charge on the US side and he soon has a suspect, a Mexican named Manolo Sanchez. Vargas is soon onto Quinlan and his Sergeant, Pete Menzies, when he catches them planting evidence to convict Sanchez. With his new American wife, Susie, safely tucked away in a hotel on the US side of the border - or so he thinks - he starts to review Quinlan's earlier cases. While concentrating on the corrupt policeman however, the Grandis have their own plans for Vargas and they start with his wife Susie.

Danny Haley's bookie operation is shut down, so he and his pals need money; when Danny meets Arthur Winant, a sucker from out of town, he decoys him into a series of poker games where eventually Winant loses $5000 that isn't his...then hangs himself. But it seems Winant had a shadowy, protective elder brother who believes in personal revenge. And each of the card players in turn feels a faceless doom inexorably closing in. Dark streets and sexy torch-singer Fran lend ambience.

When Johnny comes home from the navy he finds his wife Helen kissing her substitute boyfriend Eddie, the owner of the Blue Dahlia nightclub. Helen admits her drunkenness caused their son's death. He pulls a gun on her but decides she's not worth it. Later, Helen is found dead and Johnny is the prime suspect.