Business manager Ludvig Berndtson desperately needs a fiancée to get rid of an ex-girlfriend. He asks one of his employees, secretary Monica Brandt, to pretend to be his fiancée for a while. She is at first unwilling but desperately needs the money and accepts.
Wholesaler Ferdinand wants his son to marry his firm partner's daughter, but the problem is they don't want to get married. The son turns to a friend for advice. It turns out that Ferdinand had a daughter from a previous marriage he didn't know nothing about, which leads to further confusion