Bob suffers an inferiority attack when a test reveals that Emily's IQ is higher than his.

Facing the depressing prospect of returning home to Iowa to spend the holidays with her domineering parents, Carol brings her troubles to Bob's apartment. There she spends Christmas Eve pouring out the disasters of her childhood.

Bob becomes the ""oldest permanent psychologist in Chicago"" when the ceiling in his office collapses and he has to set up shop wherever he can find the space.