Three young sailors-Gabe (Kim Kelly), Chip (Frank Sinatra) and Oz (Jules Munshin) are going to spend a day in New York, and they decide to enjoy the big city and it's best to meet love! Gabe fell in love with the poster "Girl of the month" at first sight on the subway and decided to find her at all costs and confess his love. When the three men took a taxi, Chip was liked by the female driver and could not help but take him home for the spring night. Oz met a female anthropologist who thought he looked like a standard "prehistoric man", so he fell in love with him happily. The three friends have their own circumstances, among which Gabe's search for "girl of the month" is the most difficult and tortuous. Between singing and dancing, the 24-hour holiday seems so short.