A Serbian émigré in Manhattan believes that, because of an ancient curse, any physical intimacy with the man she loves will turn her into a feline predator.
During the Nazi occupation of Poland, an acting troupe becomes embroiled in a Polish soldier's efforts to track down a German spy.
The Marx Brothers take on high society and the opera world to bring two lovers together. A sly business manager and two wacky friends of two opera singers help them achieve success while humiliating their stuffy and snobbish enemies.