A young Navy sailor has one night to find out why a woman was killed and he ended up with a bag of money after a drinking blackout.
Sisters Ruth and Eileen Sherwood move from Ohio to New York in the hopes of building their careers. Ruth wants to get a job as a writer, while Eileen hopes to succeed on the stage. The two end up living in a dismal basement apartment in Greenwich Village, where a parade of odd characters are constantly breezing in and out. The women also meet up with magazine editor Bob Baker, who takes a personal interest in helping both with their career plans.
During the Nazi occupation of Poland, an acting troupe becomes embroiled in a Polish soldier's efforts to track down a German spy.
Karanina "Nina" Novak, is befriended by Nifty, the leader of a four-piece orchestra, and in return, secures an engagement for them at the Little Aregal Cafe, with herself as the vocalist, by pretending she once knew the King or Aregal back in the old country. Steve shows up pretending to be the King of Aregal, and complicates the growing romance between Nina and Nifty. When Steve runs off with Opa, the real King of Aregal (also Steve) appears and complicates things again.
Nightclub owner Steve Larwitt sees his empire of investments collapse as he faces tax evasion charges and attacks by rivals. Believing Steve will be safer in prison for one year, his wife, Brenda, testifies against him on advice from his lawyer, Slant Kolma, who is in love with her. After Steve receives 10 years in Alcatraz, Brenda moves to be near him and avoids advances of airplane builder Tim Nolan, who knows nothing about her past.
A bandit disguises himself as an officer in an attempt to woo a saloon singer.
U.S. sailor Jimmy Harrigan, on shore leave in San Pedro, meets and falls for Sally Brent She promises to wait for him when he ships out to San Francisco, but Jimmy becomes jealous and tells her off when he learns Sally has entered a marathon dance contest sponsored by a lecherous snake named Baron Portola. Along with several of his Navy pals, Jimmy goes to the ballroom the night of the dance marathon, to try to change Sally's mind and win her back.