Overprotective mother Liz Benedict meets 18-year-old orphan Joanna Redwine and hires her as house help and live-in companion to rambunctious daughter Tara. Liz's husband Jeff isn't too thrilled with the arrangement, and his fears soon prove justified when Joanna begins to manipulate everyone and to slowly destroy the family. Meanwhile, next-door neighbor Dr. Linquist investigates and discovers Joanna has a disturbing past.
Patty Duke
Liz Benedict
William Shatner
Dr. Jeff Benedict
Quinn Cummings
Tara Benedict
Stephanie Zimbalist
Joanna Redwine
David Wallace
Scotty
Kenneth Tigar
Tom Montgomery
Virginia Kiser
Mrs. Welford
John Houseman
Dr. Lindquist
