Six years ago, single mother Carrie Dawson suffered every parent's worst nightmare. Now she seeks redemption.

Seattle call girl Gracie Blake wakes up in a cage, in a warehouse - somewhere in America.

Students Raz, Charlie and Jess embark on their end of year Media Studies project unaware of the horrific and unspeakable fate that awaits them. What starts as a seemingly simple mystery soon turns into a claustrophobic and hellish nightmare.