Robot TN-3 (also known as Tony) is designed as a humanoid household robot, an attempt by US Robots to get robots accepted in the home. He is placed with Claire Belmont, whose husband works for the company, as an experiment, but she is reluctant to accept him. Tony realizes that Claire has very low self-esteem, and tries to help her by redecorating her house and giving her a make-over. Finally, he pretends to be her lover, and deliberately lets the neighbors see him kissing Claire, thus increasing her self-esteem. In the end, though, Claire falls in love with Tony, and becomes conflicted and ultimately depressed when he is taken back to the lab. The TN-3 robot models are scheduled to be redesigned, since US Robots thinks that they should not produce a model that will appear to fall in love with women. US Robots robopsychologist Susan Calvin dissents, aware that women may nevertheless fall in love with robots.
The story was adapted as an episode of the BBC television series Out of the Unknown with Wendy Craig as Claire.