 Sherry, the girlfriend of the former "Don Juan" and successful middle-age businessman Don Johnston, ends their relationship and leaves him. At the same time, he receives an anonymous pink letter telling him that he has a nineteen-year-old son. Don s neighbor and friend, the worker family man and aspirant "Sherlock Holmes" Winston, asks the name of Don s girlfriends of twenty years ago and organizes a cross-country trip for him to meet the ladies and find the unknown son. The reluctant and emotionless Don visits the widow Laura with her daughter, Lolita, who affronts his by appearing naked before him in a non-sexual context in a show of emancipation at his expense. Laura however is the one person in the film who treats him humanely. Then he meets the successful real state agent Dora and her husband Ron and they have dinner together. Then he comes to the office of an old flame, Dr. Carmen, now a self-centered writer on psychology of pets and a communicator with animals, based on her  relationship  with a deceased canine. Her much younger secretary gives Don an unrelentingly icy reception because of unannounced arrival although not quite successful in dismissing him. He unapologetically imposes the Doctor s schedule but she does not let down her armor--if indeed she is capable of so doing. Finally he finds Penny, also resentful, living in the woods with a pair of motorcycle bums, one of whom, evincing gentlemanly concern about Johnston s insensitivity towards Penny, cold-cocks him, He wakes up with the flowers in his car. A little later, he chances the acquaintanceship of a kind-hearted young lady florist, Sun Green, who shows some leaning towards tenderness, although she finds his name of Don Johnston impossibly quaint. The increasingly bum-my looking Johnston has one more brief encounter with a young hitchhiker for whom he buys a sandwich, then lays an off the wall comment on him about him (the hiker) thinking he (Don) is his Father! It suddenly becomes clear that while practically everyone from Don s past is a hopeless neurotic, Don himself as seen by the world, standing in traffic, is also a pretty spurious character, or at least his odyssey has brought him to that. Don ultimately returns home without solving the mystery but realizing what his past is lost.