
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.
Directed by Richard Quine

Robert Urich
Dr. William Nugent
Maureen Reagan
Dr. Christine Scofield

Jack Hogan
Dr. Edward Grey

Jed Allan
Dick Rawdon

Alfred Ryder
Dr. Al Marsdan

Harry Townes
Dr. Burkhart
Lillian Lehman
Resident Doctor

Corinne Camacho
Ruth Conoyer