The Patient in Room 18 (1938)

Max and Page are a brilliant mother/daughter con team who have their grift down to a fine science. Max targets wealthy, willing men and marries them. Page then seduces them, and Max catches her husband in the act. Then it's off to palimony city and the next easy mark.

Daryl Zero is a private investigator and—along with his assistant, Steve Arlo—he solves impossible crimes and puzzles. Although Daryl's a master investigator, he doesn't know what to do with himself when he's not working; he has no social skills, writes bad music and drives Steve crazy.

Detective Guy Johnson's client, Willie Heywood, is framed for murder. While Guy hides him so he can catch the real killer, both of them are nabbed by the police, tried, convicted and sentenced to jail: Guy for a year with Willie to be executed. On the way to jail, Guy comes across a clue and escapes from the police.

On an ordinary night, in an ordinary part of town, a beautiful young woman walks into a bar. Her name is Jewel, and before long she is chatting to bartender Randy. The pair leave together, but he ends up getting into a tussle with her criminal boyfriend, who she then shoots dead, later persuading Randy to take the rap for her. But this isn't the end of it, as both Randy's cousin Carl and the detective assigned to the murder case also fall for Jewel's charms and find themselves caught up in the ensuing events. It seems that any man who meets Jewel falls instantly in love with her, and she's going to use this fully to her own advantage, leaving a trail of havoc in her wake. It also seems that she is going to get away with it - that is, until Randy decides to hire a hitman...

A dentist finds himself a murder suspect after a sexy patient seduces him into prescribing her drugs.

Not even the joys of parenthood can stop married sleuths Nick and Nora Charles from investigating a murder on a Long Island estate.

A Broadway playwright puts murder in his plan to take credit for a student's script.

Ray is a fledgling entrepreneur who specializes in high-end simulated abductions. He jumps at the chance when a mysterious client contracts him for a weekend kidnapping with a handsome payday at the end. But the job isn't all that it seems.

Upon waking up to the news that the man she’d gone on a date with the previous night has been murdered, a young woman with only a faint memory of the night’s events begins to suspect that she murdered him while attempting to resist his advances.

A spoof of the entire 1940s detective genre. San Francisco private detective, Lou Pekinpaugh is accused of murdering his partner at the instigation of his mistress—his partner's wife.