Roslyn Hanniger (Sara Foster) has a disturbed past and she joins a recently closed hospital to gather the hardcopy of patient records. Working alone in the building at night, she comes across a number of disquieting events so that she believes the hospital may be linked to several recent murders by a maniac called The Nighthawk. But, to trace out the truth, her past has to be demystified. Psychiatrist, Dr. Irvin Clement (Cary Elwes) and detective Marling (Michael Biehn) try to solve the gruesome mystery which may have roots in the unpalatable and disturbed past of Roslyn and her hallucinations as well.