The most frightening thing about Jacob Singer's nightmare is that he isn't dreaming.
A traumatized Vietnam war veteran finds out that his post-war life isn't what he believes it to be when he's attacked by horned creatures in the subway and his dead son comes to visit him...
On 6 October 1971, an American combat medic Jacob Singer is with the 1st Air Cavalry Division, deployed in a village in Vietnam’s Mekong Delta, when his close-knit unit comes under sudden attack. As many of Jacob’s comrades are killed or wounded, others exhibit abnormal behavior with some suffering catatonia, convulsions, and seizures. Jacob flees into the jungle, only to be bayoneted by an unseen assailant.
Jacob awakens in the NYC Subway, where an inexplicably locked subway station exit results in him almost being hit by a train. The year is 1975, he works as a postal clerk, and lives in a rundown apartment in Brooklyn with his girlfriend, Jezzie. Jacob misses his old family and experiences visions of them, especially the youngest of his sons, Gabe, who had died in an accident before the war. He is increasingly beset by disturbing experiences and apparitions, including glimpses of faceless vibrating figures, and narrowly escapes being run over by a pursuing car. At a party thrown by friends, he appears to witness an enormous creature penetrating Jezzie before he collapses with a dangerous fever. First-person perspective apparent flashbacks to his time in Vietnam show Jacob, badly wounded, being discovered by American soldiers before being evacuated under fire in a helicopter.
One of Jacob’s former platoon mates, Paul, contacts him to reveal he is suffering from similar experiences but is immediately killed when his car explodes. Commiserating after the funeral, other surviving members of the platoon confess that they have all been experiencing horrifying hallucinations. Believing that they are suffering the effects of a military experiment performed on them without their knowledge or consent, they hire a lawyer to investigate. However the lawyer quits the case after reading military files documenting that the soldiers were never in combat and were discharged for psychological reasons. Jacob’s comrades soon back down while Jacob suspects they have been threatened into doing so. He is abducted by suited men who try to intimidate him. Jacob fights them and escapes but is injured and nearly paralyzed in the process. He is taken to a nightmarish hospital, where he is told he has been killed and this is home, but his chiropractor friend Louis comes to his rescue and heals him. Louis quotes the 14th-century Christian mystic, Meister Eckhart:..