The main plot involves Doctor Kimble meeting a young woman who seems very emotionally unstable, manipulative, and possessive. The lady (played by Joanna Pettet) tries to endear herself with a carnival worker as well as Doctor Kimble. She had previously got tangled with a former coworker who got fired for stealing (apparently was framed by her). The lady lost her parents at a young age and was raised by her retired uncle from the police force. There are many indicators of the lady who appears innocent enough, but harbors a strong need to get affection and approval from others. Her character includes professing lies to place the blame on others. She is later connected to an arson attempt on the carnival worker and his wife. She tries to run away with Doctor Kimble who cannot allow for anyone to accompany him, so she becomes vengeful towards him. Near the end, her uncle then realizes that his niece may have been responsible for the death of her parents by arson. The character portrayed by Joanna Pettet closely resembles the evil child in the "Bad Seed" story. At the end of the episode, a former coworker and friend of the uncle tells him that sometimes people turn out mentally sick.