Broadway producer Peter Duluth sought solace in a bottle after his wifes death now two years later and desperate to dry out he enters a sanitarium hoping to break his dependence on drinkbut the institution doesnt quite offer the rest and relaxation he expected. Strange malevolent occurrences plague the hospital and among other inexplicable events Peter hears his own voice with an ominous warning There will be murder. It soon becomes clear that a homicidal maniac is on the loose and with a staf