Robert Benjamin loves dogs too much. His therapist wants fame and fortune. The Rexville dog catcher is hunting a nighttime scofflaw. His girlfriend accuses the wrong man. The mayor is up to no good. It all culminates in the annual Rexville Dog Show. Westminster, it is not. But it makes the nightly news. “Dog Park” is a tale about a small town and its wild, but good-hearted, dog owners.