After spending another Valentine's Day alone, Moe attends a seminar led by Dr. Kissingher in the hopes of gaining more confidence with women. Moe takes the doctor’s advice and asks Homer to be his wingman. Meanwhile, Marge discovers her first gray hairs, only to find out from her hairdresser that she is completely grey and the fumes from the chemical he used blanks her memory of the dye job. Seeing a grey-haired couple having a good time unworried about their hair, Marge surprises both her family and the neighborhood by going completely gray and sporting a brand new mature hairdo. Amidst mixed reactions, Bart is not happy when the neighborhood kids tease him about Marge’s look, and Marge is annoyed when neighborhood women believe she is older than she really is.
Unhappy about Marge's look, Homer initially tells her she is his "silver bell" to appease her; but subsequently spends more time helping Moe with women in order to avoid looking at her, during which he becomes increasingly popular with the young ladies. Later, Patty and Selma point out to Marge Homer's true feelings about her look (noting that Homer would not try to be "clever" if he really liked it), this only being made the more obvious to her when two women gossip about his appearance at a club that night. A jealous Marge heads to the club to surprise Homer, but suffers increasing mishaps resulting in her having a witch-like appearance. At the club, she confronts him upon seeing a crowd of women flirting with him, but Homer helps Marge realize that he only has eyes for her and proves that love is still in the Springfield air. Eventually, Marge changes her hair color back to blue to combat her jealousy issues, and Homer dyes his hair blue for her.