A Deputy District Attorney suspects that a nurse has been murdering her rich husbands and relatives by giving them unneeded insulin doses, but his superiors don't believe him.
Robert Conrad
Paul Ryan
Howard Duff
Lynn D. Compton
Diane Baker
Mary Brokaw
J.D. Cannon
Nicholas Devaney
Gerald S. O'Loughlin
Sgt. Andrushian
Alfred Ryder
Dr. Donald Stuart