Emily is more than a little curious about Bob's reluctance to talk about a girl he used to date. Then Howard inadvertently spills the beans.

Emily agrees to help operate a children's summer camp and tries to persuade Bob to be one of the counselors.

Bob's old school friend Murdock is in town for a day to sell a complex giveaway item to a Chicago cereal company. Bob invites him to stay overnight at his home. The brief encounter stretches out to a week when Murdock can't make his business connections. He gradually takes over Bob's car, clothing, and most of his home life.

It's a stag Thanksgiving for Bob when Emily flies off to join a family reunion, leaving Bob to share the holiday with his male buddies.

Bob suffers family problems when his mother becomes a houseguest and an elderly patient involves him in a parent-child vendetta.

Christmas Eve finds Bob in the hospital with tonsillitis and an impending operation. Meanwhile, his friends are all suffering from an attack of Christmas-itis.

Howard's game-warden brother comes to Chicago to witness the mating of two whooping cranes—and stays to make a play for Howard's girlfriend.

Bob develops a unique psychological problem when his receptionist, Carol, decides to resume her college career and become a psychologist.

Bob's therapy group has an unexpected visitor when a friendly homosexual joins in the sessions.

Jerry, retired orthodontist and orphan, takes off on a world tour to search for his long-lost parents.

Bob succumbs to the pressures of living in a big city and desperately seeks employment of a small rural college.