The contemporary archetype of “The Karen” is the chilling centerpiece of Geeta Gandbhir’s documentary The Perfect Neighbor (B), tracing the killing of Ajike Owens in Florida and exposes the perils of the “Stand Your Ground” policies allowing the use of force when faced with perceived imminent danger. The film is told almost primarily through police bodycam footage in a cross section of a neighborhood, exploring the series of disputes that led to the murder. The antagonist is the most fascinating character, unhinged and selective in her subversive statements, and the narrative is intriguing as the heated situation between this character and those around her boils to tragedy and then to a quest by the collective neighbors for justice. The repetitive format doesn’t leave lots of room for variety in terms of the look and feel of the shots, but Gandbhir sure knows when to punctuate the proceedings with bursts of revealing dialogue or even a hot pursuit. The real kids in the film are also compelling to witness as they react to very good and very bad adults from their playful vantage points. The form is nearly as fascinating as the story itself and succeeds overall as a cautionary tale.