Marguerite Viby is the office girl whom her married boss is attracted to. To avoid his advances, she plays 13, but that doesn't make the situation much better. The boss still thinks she's lovely, and when his wife appears in the arena, the 'game' must continue and she pretends to be his illegitimate daughter. It seems not least that a newly minted grandfather is the best of all time. Ergo: Big scandal in the family.