Admitted to Mt. Abaddon Hospital for a routine procedure, George Grieves discovers that his condition is much more serious and complicated than originally expected; and as his own fears begin to manifest around him, he learns that Mt. Abaddon is not a place where people come to get better... it is a place where people come to die.
Tom Cavanagh
as George Grieves
Kathleen York
as Jenny
Kat Coiro
as Zoe
Kyle Gallner
as Ned
Shanna Collins
as Chloe
Lawrence Hilton-Jacobs
as Mandingo
David Clayton Rogers
as Billy
Cas Anvar
as Dr. Sharazi
Bruce Nozick
as Ira
Dan Gerrity
as The Bald Man
John Rubinstein
as Lichterhand
Paget Brewster
as Andrea
