This pre-Code comedy-thriller centers on Robert Holden, a broke and discouraged veteran, who meets fellow American Elinor Green at a cafe in Paris. After their first encounter, Holden's attempt to return Green's thought-to-be stolen purse ends up rendering him a stowaway on board a ship bound for America. Also aboard is a collection of characters, including Green's banker fiancé, a famed scientist, and an opera singer. Romance begins to blossom between Holden and Green, just as a radiogram claims that an “infernal machine,” or bomb, is aboard the ship. Quickly each passenger accuses the others of planting the bomb until eventually Holden, jealous of Green's attention to her undeserving fiancé, falsely admits to being the culprit. In his role as assumed perpetrator, Holden tests the group further.

Mame Dennis, a progressive and independent woman of the 1920s, is left to care for her nephew Patrick after his wealthy father dies. Conflict ensues when the executor of the father's estate objects to the aunt's lifestyle and tries to force her to send Patrick to prep school.

Convinced he'll graduate with honors because of his thesis paper, a stuffy Harvard student finds his paper being held hostage by a homeless man, who might be the guy to school the young man in life.

On the South Pacific island of Bora Bora, a young couple's love is threatened when the tribal chief declares the girl a sacred virgin.

When a rich woman's ex-husband and a tabloid-type reporter turn up just before her planned remarriage, she begins to learn the truth about herself.

A beautiful temptress re-kindles an old romance while trying to escape her past during a tension-packed train journey.

At a big party, Roger Fallon, now a woman-hater, right to the core - this all due to a failed marriage and disastrous love affairs - talks to Herbert Drake. Herbert who is happily married, bets Fallon that the next woman who walks into the room, whoever she is, won't let Fallon kiss her for 48 hours. Fallon takes the bet. Suddenly, a very beautiful and sexy woman walks in. It's Herbert's wife, Jeanne Drake...

Gabby Denton, a hard-drinking, down-on-his-luck drifter, seems to get a chance at redemption when his brother-in-law helps get him a job as a mechanic. Not realizing the garage he works for is actually a front for a stolen car ring, Gabby soon finds himself mixed up in both murder and a liaison with the boss's girl.

A salesman gets in trouble with a party girl and a debutante in Detroit.

A successful songwriter, dazzled by high society, falls for a society girl who is just playing around.

A wealthy family is thrown into turmoil when the daughter falls for the family chauffeur and the son begins to keep company with a chorus girl.

Sailor Spike dates girls whose names he finds in an address book. Each girl has the same tatoo, placed there by another sailor Bill. When Spike meets Bill they become friends. In Calais Spike meets Goldie. Bill warns him against her, but Spike ignores the warning until he finds Bill's tatoo on Goldie as well.