Well-known canine performers of the 1930s vie for a part in an upcoming movie.

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

David Huxley is waiting to get a bone he needs for his museum collection. Through a series of strange circumstances, he meets Susan Vance, and the duo have a series of misadventures which include a leopard called Baby.

Unfounded suspicions lead a married couple to begin divorce proceedings, whereupon they start undermining each other's attempts to find new romance.

With the aid of his former law students, a professor-turned-prosecutor battles corruption and organized crime.

Mrs. Topper's friend Mrs. Parkhurst has convinced Mrs Topper to file for a divorce from Cosmo due to the strange circumstances of his trip with ghost Marion Kirby. Marion comes back from heaven's door to help Cosmo again, this time only with dog Mr. Atlas. Due to a strange behavior of Cosmo, the judge refuses to divorce them, so Mrs. Parkhurst takes Mrs. Topper on a trip to France where she tries to arrange the final reasons for the divorce. With help of a gold-digging French baron, Marion takes Cosmo to the same hotel to bring them back together and to get her own final ticket to heaven, but the whole thing turns out to be not too easy.

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

A husband and wife detective team takes on the search for a missing inventor and almost get killed for their efforts.

Nick and Nora Charles investigate when Nora's cousin reports her disreputable husband is missing, and find themselves in a mystery involving the shady owners of a popular nightclub, a singer and her dark brother, the cousin's forsaken true love, and Nora's bombastic and controlling aunt.

Val takes the assistance of a society reporter and a journalist to investigate the disappearance of her half-sister Arlene, a wealthy socialite who is involved in criminal activities.