Jeffrey Rhodes, an anesthesiologist, is sued and then convicted of murder when one of his patients dies after a routine anesthetic injection. Determined to clear his name, Rhode jumps bail, disguises himself, and takes a position as a janitor in the hospital to investigate the death. With the aid of a nurse, he discovers that he and other doctors have been framed for the deaths. The killer is benefiting from the court cases and pursues Rhodes, attempting to eliminate him too.