Hashtag: #ABC2020

THE LIVE-IN NANNY WHO WON'T MOVE OUT AIRING ON "20/20," FRIDAY JULY 11, 10 PM ON ABC

Plus: The Zoo Next Door, Ghost Parties, Haunted Houses, and Extraordinary Homes

The Bracamonte family from California was a little surprised after they fired their live-in nanny and instead of packing her bags, she just stayed put. With a room just off the Bracamonte's living room, the nanny-non-grata continued to share their home while the exasperated family looked for a way to get her out. As it turns out, the nanny is within her rights to stay. The worried parents of three have locked their refrigerator with a chain so the nanny could no longer access their food, and are afraid to leave their home for fear that she would lock them out. They let "20/20" embed in their home while navigating this odd situation. The nanny has her side of the story too. In a Nick Watt exclusive interview, she shares why she continues to stick around. Anchored by Elizabeth Vargas and David Muir, "20/20" airs on FRIDAY, JULY 11 (10:00 - 11:00 pm ET) on the ABC Television Network.

Plus: The zoo next door... We have all heard of nasty neighbors but what if the problem is not human, but animals next door? From too many to too wild, the wrong critters next door can not only impact a homeowner's lifestyle, but also impact the resale value of the house. Rebecca Jarvis reports.

And: Ghost parties... They're called ghost parties or mansion parties, where teens go online, look for high end properties for sale that appear to be empty and use the home to party the night away. Police say revelers at one such ghost party ransacked an opulent Southern California mansion, leaving $1 million in damages, and making off with medieval armor, designer suits and a $250,000 stuffed leopard. Deborah Roberts reports.

Also: Haunted houses... Would you buy a haunted house? They are known in the real estate business as "stigmatized properties" and depending on where you live and who your broker is, you can lose your shirt or make a killing. Chris Connelly reports on "past life homes," cleansing of homes and multi-million dollar homes featured in horror films or television shows.

Additionally: You live where? "20/20" visits a woman in Bisbee, AZ who lives in a tricked-out cave, a man in Minnetrista, MN who lives in a house made out of white foam, and a prideful neighbor in Topeka, KS who deliberately wanted to live across the street from controversial Westboro Baptist Church so he could paint his house in rainbow colors to offer a counter-view of equality and love. Nick Watt reports.