This story follows a dress and how it affects three people. First, a model (Markie Post) who's trying out a new diet program, who is suppose to wear it to show how much weight she lost and it's been designed to fit her after losing the weight. She's starving and she meets a guy (Lyle Waggoner) who, unknown to her, is the former partner of the doctor (Kelly Monteith), whose diet she's following. He gets her to try his program, which has her eating candy bars, among other things. And a woman (Eleanor Parker), who sells flowers on the dock, freaks out because the daughter (Catherine Parks), she hasn't seen for 20 years, comes on board to see her. She tells the Captain (Gavin MacLeod) that she told her that she's a woman of means and asks him to tell her she's not on the ship. But the Captain tells her she is and tells the woman she's coming on the cruise and the Captain lets her wear the dress, when she meets her daughter. And a guy (Bob Denver), a friend of Doc (Bernie Kopell), comes on...