Disappeared (2010)

Season 6: Episode 4

Tammy Kingery suffers a mysterious illness and is bedridden at home. Her husband and children leave to run errands and, when they return, Kingery has disappeared. They find a note saying she's gone for a walk, but they live deep in the woods and she's taken nothing with her. Massive search efforts yield no signs of the 37-year-old nurse. On the surface it seems like she had everything she ever wanted - a loving family, a rewarding career, and a dream house - but an investigation reveals dark secrets leading to all kinds of theories about what may have happened to Kingery.