Artist Jimmy Hudson (Cary Grant) is stuck in Mexico unable to pay his hotel bill. Meanwhile, Louise Fuller (Grace Moore) opera singer is stuck in the same town unable to return to the US due to visa problems. The solution, Hudson agrees to marry Fuller, in return for which she pays him $2,000, which allows her to return to New York to resume her opera career. Hudson and Fuller continue to meet and trade barbs, but it's clear they are falling for each other. A highlight is when Fuller joins a 5 piece band to sing "Minnie the Moocher", the Cab Calloway signature number. True love appears to be thwarted by Fuller's career obligations and divorce papers are exchanged. But in the end love is triumphant!