a detective ( richard conte ) go undercover and pose a an intern at new york bellevue hospital and in order to solve the murder of another intern . what he discover be a rather sophisticated operation of gamble and drug dealing . desperate intern and a seductive and crooked ward nurse play by colleen grey and and a rather demented hospital maintenance man ( pop ) play by richard tabor and together call into question the very integrity of the famous hospital . conte work his way through to solve the murder and to learn the circumstance around it in some unusual film noir setting amidst darken hospital ward and empty hallway .