Spanish version of the MGM romance, His Glorious Night: in the old Austro-Hungarian empire, a princess rejects her arranged marriage and loves, instead, a dashing cavalry captain.

Min, a hard-boiled proprietress of a waterfront hotel, who has as her sweetheart Bill, a fisherman, brings up Nancy, a girl who was deserted by her own mother in infancy. However the Local authorities are trying to persuade Min that she is not a fit mother and that Nancy should be sent to school.

Life changes for an Andean family when oil wealth and a fugitive arrive in town.