Longfellow Deeds lives in a small town, leading a small town kind of life. When a relative dies and leaves Deeds a fortune, Longfellow moves to the big city where he becomes an instant target for everyone. Deeds outwits them all until Babe Bennett comes along. When small-town boy meets big-city girl anything can, and does, happen.

Inventor Thomas Edison's boyhood is chronicled and shows him as a lad whose early inventions and scientific experiments usually end up causing disastrous results. As a result, the towns folk all think Tom is crazy, and creating a strained relationship between Tom and his father. Tom's only solace is his understanding mother who believes he's headed to do great things.

After a young woman is coerced into prostitution and her brother framed for murder by an organized crime syndicate, retribution in the form of an ape visits the mobsters.

Told in flashback, Depression-era bum Dan McGinty is recruited by the city's political machine to help with vote fraud. His great aptitude for this brings rapid promotion from "the boss," who finally decides he'd be ideal as a new, nominally "reform" mayor; but this candidacy requires marriage. His in-name-only marriage to honest Catherine proves the beginning of the end for dishonest Dan...

When a confused eyewitness identifies New York City cabbie Brick Tennant as a killer, he is sentenced to death for a murder that he wasn't involved in. Though no one is willing to listen to the innocent prisoner's pleas for freedom, Brick's faithful fiancée, Mary, knows that her lover is innocent because she was with him when the crime was committed. As the scheduled execution draws ever nearer, Mary begins to investigate the murder herself.

Marianne falls in love with con man Valentine who uses their relation to get her father's endorsement on a money-raising scheme. He runs off with the money and Marianne, later dumping her. Her sister Laura loves Dr. Lindley although she knows he loves Marianne. Marianne returns and marries a wealthy young man, and Lindley turns his love toward Laura.

An on-the-lam New York card shark marries a small-town librarian who thinks he's a businessman.

Jay Rountree, a young, rising businessman and a son of a wealthy manufacturer gets caught up in a web involving an escort service or 'party girls' and trapped into an unhappy marriage.

A meat inspector sets out to rid his town of payoff deals affecting the quality of meat being sold to the public.

While building an irrigation system for a Southwestern desert community, an engineer vies with a local cowboy for the affections of a rancher's daughter.

Suave amateur detective Tom Lawrence--aka Michael Arlen's literary hero The Falcon--arrives in Hollywood for some rest and relaxation, only to find himself involved in the murder of a movie actor. There's no shortage of suspects: the costume designer to whom he was married, a tyrannical director, a beautiful young French starlet, a Shakespeare-quoting producer, even a New York gangster. Helping The Falcon solve the crime is a cute, wise-cracking cab driver and a pair of bumbling cops.

A remake of Frank Capra's Submarine (1928), Devil's Playground is a snappy Columbia "B plus" picture starring Richard Dix and Chester Morris. Submarine officers Dorgan (Dix) and Mason (Morris) battle on land for the affections of dance-hall girl Carmen (Dolores del Rio). She marries Dorgan but makes a play for Mason when her husband is on duty. The romantic rivalry is forgotten when Dorgan must rescue Mason and his crew from a sunken sub.

Manicurists Sally, Irene and Mary hope to be Broadway entertainers. When Mary inherits an old ferry boat, they turn it into a successful supper club.

A diver saves his best friend's life but loses his own arm in doing so. Later, unable to find work because of his missing arm, he is forced to go to work for a criminal searching for lost treasures. Meanwhile his friend, who has since become a policeman, finds himself assigned to break up the crook's operation and bring in his gang--including the man who saved his life.

"Happy" MacDonald and his unfaithful wife own a Prohibition era night club. On this eventful night, he is threatened by bootleggers, and the club's star dancer falls in love with a young socialite who drinks to forget a personal tragedy, among other incidents.

Spies force former jewel thief Michael Lanyard to steal defense secrets in Washington.

A famous singer, bored with music and fans, goes to live in Mexico. His manager sends a woman to bring him back. They fall in love.

A carnival showman tries to keep Japanese spies from sabotaging the Panama Canal.

When reporter Dan Miller is once again late to meet his girl friend, Helen Murdock, because he is working on a story, Helen breaks up with him. Later, in an effort to reconcile with her, Dan misses an appointment with the district attorney, and is fired when his editor learns that the district attorney was murdered in Dan's absence. The man suspected of the crime, Mitts Coster, is rumored to be traveling to Europe aboard an ocean liner. While Dan's friend, photographer Snapper McGillicuddy, fetches Helen to the boat, under the pretense that Dan is leaving town to forget her, Dan searches the ship for Mitts, whom he does not recognize. When Helen arrives, Dan feigns illness, and she admits her love for him. When Helen learns of Dan's ruse, however, she angrily hits him with a package that a passenger gave her when she boarded the ship. The package contains a passport for Dorothy Madden, who greatly resembles Helen, and $2,000 dollars.

The staggeringly wealthy Norah Hunter, a shipyard owner, too often finds herself the romantic target of gold-digging men. To attract a suitor whose main interest is not money, she changes places with her secretary, Sylvia Lockwood, and assumes the role of a young working woman. However, she then falls for recuperating fighter pilot Anthony Travis, who, in turn, is madly in love with Sylvia -- or, perhaps, with the millions he thinks she has.