Lady for a Night is a 1942 American drama film starring Joan Blondell and John Wayne.

Social climber Jenny Blake owns the casino steamboat Memphis Belle, together with the influential Jack Morgan.

Everyone in Alan's family has a hard time accepting Jenny, except his aunt Katherine, who is suffering from mental illness.

Jack saves Jenny and the ball by using his political influence to make the guests attend, even though Julia has tried to keep them away.

Aunt Katherine is the only person who knows that Julia mixed the drink, but she is forced by her sister to testify against Jenny in court.

She finally gives up her dream to climb the social ladder and accepts Jack's proposal to marry him.