When Daphne finds an engagement ring in Martin's underwear drawer, she tells Frasier. It is obvious he is going to ask Sherry to marry him. However, we find out that Niles has already hired a private investigator to check up on Sherry. So we have the tussle between privacy and concern for the old man. There is little spark in this one, but it shows how the relationship between father and son is developing.
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