Los Serrano is a series about complicated function of a modern family. Family troubles grows mainly from the fact that the family is merged from two former families, a girlish and a boyish one. So, it's no so easy to get on with each other at the beginning when one part has a passion for a soccer and the other needs a little bit of romance.
Although the beginning is very hard they found out during the time that they can't live without each other even over troubles they do to each other. The series is simply about coexistence of women and men in one family, about meeting two opposite extremes that in final phase creates a new emotional bond.