Let It Rain (1927)

LetItRain Riley MacLean is a devilmaycare Marine sergeant who falls in love with a girl Shirley Mason who he assumes to be rich His rival for the girls affection is his pal Kelly Wade Boteler The guys find out that the object of their affections is but a modest switchboard operator but she proves to be invaluable when she deciphers a code and discovers that a mail train is about to be robbed