Complex sentence: The "perfect" next door neighbours across the street from the Kaplans, from their pristine lawn and always appropriate housewarming gifts, mainly referring to the overachieving, African-American mother (real name is yet unknown).
Split into simpler sentences: The "perfect" next door neighbours across the street from the Kaplans. Perfectville refers mainly to the overachieving, African-American mother (real name is yet unknown).