Inspectors for the U.S. Public Health Service try to track down the cause of a rash of mysterious ailments suddenly appearing among the general populace.
as Dr. William Nugent
as Dr. Christine Scofield
as Dr. Edward Grey
as Dick Rawdon
as Dr. Al Marsdan
as Dr. Burkhart
as Resident Doctor
as Ruth Conoyer
as Mrs. Vanier
as Roger
as Dave
as Leonard Pitt
as Erich
as Mrs. Stinnett
as Ernest Lathrop
