When stuff goes missing, Brittany Campbell blames her husband-she doesn't know a stranger living inside their home plans to use the couple in medical experiments.

Tina Bowen believes her dead mother is playing tricks on the family-until a battle with a flesh-and-blood intruder uncovers a real-life horror movie.

When her family's gifts go missing, Stacy Ferrance blames the kids-but a dirty footprint leads her to a shocking surprise in the attic.

Vickie Martin's ex has invaded her home and turned her life into a living hell-until she decides to turn the tables on her tormentor.

After their wedding shower, engaged couple Timothy and Amanda find uninvited guests in their crawlspace-a man wearing Amanda's clothes and a cat eating their food.

When odd noises fill Courtney Randolph's home, her two exes offer to help. As her surroundings become more chaotic, she's blind to what's happening around her.

A raised toilet seat alerts Kate Flory to an uninvited male visitor-and soon strange sounds and items show up. A confrontation with the intruder sends Kate screaming.

Helena Jayne Bryant notices things missing and stuff misplaced, but figures it's a memory lapse. It takes a sinister encounter with her home invader to make her finally wake up.

Sherry Lovell blames her grandchildren for hoarding food, until she comes face to face with the culprit. It's a man from her past hiding in her crawlspace.

After Heidi Lane moves to the big city, her underwear starts disappearing. Mystery solved when she spots a man peering down through holes in the ceiling.