"20/20? reports on housing nightmares, unusual homes, awful neighbors and real estate's dirty secrets in "Home Sweet Home" on FRIDAY, MARCH 8 (10:00-11:00 p.m., ET) on the ABC Television Network. Anchored by Elizabeth Vargas and David Muir, reports include:

• What Lies Beneath: Just this week a man lost his life when his home was swallowed by a sinkhole. Gio Benitez reports the latest from the tragedy and takes a closer look at the subterranean threats to your home like sinkholes and landslides and how you can protect yourself.
• House from Hell: Nothing is more personal than where you lay your head to sleep, so imagine your dream home becoming a nightmare: infected with meth residue, being awoken at 3:00 a.m. by airplanes or even stray voltage shocking you all the time. Jim Avila investigates.
• You Live in What?! From living in a home built inside a former government missile site built 17 feet underground that during the height of the Cold War was primed to destroy a Soviet city to living adjacent to a graveyard, Nick Watt reports on the unusual places people call home. Watt also looks at the "small home" movement.
• Confessions of a Real Estate Agent: With the help of Ryan Serhant of Bravo's "Million Dollar Listing" and Sandra Rinomato of "Property Virgins," Deborah Roberts reveals the dirty secrets some real estate brokers will not tell you.
• When Your House is a Star: Often on television or in a movie it is not an actor who is the most memorable but a scene-stealing piece of real estate. When that home becomes an iconic part of our favorite TV show or film, what does that do for the value? Elizabeth Vargas tracks some famous homes that have just come to market: the beach house featured on "Revenge," which is for sale in North Carolina for $1.6 million; Rayna James' home on "Nashville," which is on the market for $19 million; the Osbourne family home featured on their reality show, now for sale by Christina Aguilera for $13 million; and the mansion from "Entourage," which just sold for $4.2 million.
• Awful Neighbors?: In a Miami neighborhood one man's bizarre behavior has galvanized a community to fight back using security cameras to document alleged broken windows, sliced car tires and general mayhem. Halfway across the country in Missouri, another man allegedly annoys his neighbors with dead deer on his front lawn and by dancing around in his underwear. Matt Gutman reports.

David Sloan is senior executive producer and John Green is executive producer of "20/20?.

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