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On a trip to visit his parents, detective Nick Charles gets mixed up in a murder investigation.

A middle-aged couple suspects foul play when their neighbor's wife suddenly drops dead.

Society sleuths Nick and Nora Charles investigate a murder in a jazz club.

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

Amedeo and Ofelia, middle aged brother and sister, own jointly an old decadent, but still attractive, condominium. They want to sell it, but before they have to evict all the tenants. Of course, these don't want to leave at all. The cat (Il Gatto), mascot and beloved by all, dies and this gives the two an excuse to enter the tenants' life. Amedeo starts to court the young Wanda and Ofelia seduces the priest Don Pezzolla. In the meantime police is looking for the cat killer...

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.

Two dumb soda jerks dream of writing radio mysteries. When they try to pitch an idea at a radio station, they end up in the middle of a real murder when the station owner is killed during a broadcast.

A group of senior sleuths passionate about solving cold cases get plunged into a real-life murder mystery in this comic crime caper.

High society sleuths Nick and Nora Charles run into a variety of shady characters while investigating a race-track murder.

Over-the-hill gumshoe in Los Angeles seeks to avenge the killing of an old pal, another detective who was involved in a case concerning a murdered broad, stolen stamps, a nickel-plated handgun, a cheating dolly, and a kidnapped pussycat.