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Overworked private nurse Stella Crosson (Dana Wynter) is relieved when a new assistant shows up to help her care for wealthy invalid Glendon Baker (John Kerr). Stella's happiness is, however, somewhat mitigated when she hears that a serial killer of nurses has struck in the neighborhood. Things get worse when the power goes out in Baker's house and the rest of the staff is nowhere to be found -- and it appears that someone has already attacked Stella's assistant. This episode originally aired amidst a flurry of publicity wherein the producers allegedly posted a guard on duty at the studio during filming, and the script was delivered to the actors with the last three pages missing, so that no one could reveal the shocking finale (although a casual perusal of the cast list gives the game away for showbiz-trivia buffs).