Operation Sandman: Warriors in Hell
A top-secret military experiment in sleep deprivation unleashes the innermost fears of the subconscious mind with deadly results. Dr. Harlan Jessup is the dictatorial leader of a secret research unit subjecting a troop of hardened combat veterans to a sleep deprivation experiment conceived to perfect a drug that will transform them into nonstop killing machines. As weeks pass with no rest, the soldiers' subconscious minds unleash their fears and paranoia. Sturner is the first recruit to crack when the drug induces hallucinations that cause him to confuse a subconscious apparition with reality -- with lethal results. Conditions deteriorate rapidly as the other team members experience a blurring between what are real threats and those that exist in their minds. As Jessup's motives are revealed, his "subjects" turn on themselves and each other as their worst nightmares come to life.