After receiving an African fertility mask as a gift Ellen tells her husband William that she's been attacked by masked phantom called 'the Nightmare Man'. As Ellen's paranoia increases, William takes Ellen for a road trip to a clinic, only to have their car break down, and when William goes off, Ellen is attacked for real by the Nightmare Man. Fleeing through the dense woods, Ellen seeks shelter in the remote cabin home of Mia, with her friends Jack, Ed, and Trinity, who give her shelter, but are soon besieges in their home by Nightmare Man. But the real horror comes when Ellen slowly reveals to harbor a MORE evil and deadly thing within her which could spell death for everyone involved.