Wealthy, stagestruck Nan Carter strikes a bet that she can say "no" to everything for 48 hours. If she wins, she gets the $25,000 to back a Broadway musical vehicle for herself. She's determined, even if it means saying "no" when the fella she loves pops the question. Nan doesn't know it yet, but her fortune has been wiped out in the Crash of '29.Doris Day is a sunny sensation in this flapper-era musical romp, with costars Gordon MacRae and Gene Nelson on hand to help provide songs, dance and romance. Skilled farceurs Eve Arden, Billy De Wolfe and S.Z "Cuddles" Sakall deliver lots of laughs. And the Gershwins, Vincent Youmans, Harry Warren and other Tin Pan Alley greats supply wonderful melodies, including the title tune, "Do, Do, Do," "I Only Have Eyes for You," "I Want to Be Happy" and lots more.