Parents' discord feelings and divorce, usually makes most injuries on their small children. This film is vivid to such situation, and links small children who need parental care and stray dogs abandoned in the street through the design and plot images together. In fact, if we want a healthier society, we should let everyone feel that someone indeed care him/her, so that people will really in turn care for others.
Put it more bluntly point, if families are dysfunctional and let children can't feel the sincere love from their parents when they grow up, then those children might be likely to lose the ability to care for others, and it will let this society becomes unhealthy. Apart from watching this video, I believe it is worth us deeper self-reflection.
