In 2021, Andrew and Stevi Groetsch started building a modern ranch-style home across from a peaceful stretch of farms in Vineland, New Jersey. One night a few years later, in September 2025, Andrew was reading their daughter a bedtime story when he noticed the windows in her room vibrating with a loud, mechanical hum. He heard the same “wailing” sound while walking their floppy-eared Hungarian pointer at dawn. “We’d just spent a bunch of money t…