While traveling by train from Curitiba to his hometown Antonina, Mário flirts with the store seller Neusa. The handsome Mário is an ambitious college student and bank clerk who dates the shallow but wealthy Cristina, expecting to marry her to elevate his social position. In a similar situation, Neusa dates the worker Rogério, he is in love with her but she expects to marry Mário to improve her poor life. Mário faces predicament in the bank where he works while feels split between his contradictory feelings for Neusa and Cristina.
—Claudio Carvalho, Rio de Janeiro, Brazil