Couple who allegedly tied up adopted child with dog leash, kept her in 'dungeon room,' facing lawsuit

Olivia Atkocaitis, now 20, is suing her adoptive parents and New Hampshire authorities she says allowed them to imprison, abuse and "enslave" her for 14 years without schooling.

After her adoption under China's "one-child policy" at 14 months old, Atkocaitis was regularly locked into that 8-foot by 8-foot room "for weeks at a time" by parents Thomas and Denise, according to the lawsuit.  Christina Coulter is a U.S. and World reporter for Fox News Digital. Email story tips to christina.coulter@fox.com.

There, she slept on a vinyl twin mattress without sheets, heat, ventilation or running water. The window was allegedly covered with chicken wire, and she was forced to relieve herself in a bucket, according to court documents.