This is a Victorian Cautionary Tale concerning two young people married to each other by order of their fathers, and for business reasons. Their wedding night, and subsequent events prove difficult for the uninformed youngsters, but they are helped by an older lady's maid.
Darcy is the school tease. After her brother hears of the rumors he has his friend date her one night to see if it is true. When he finds out it is, he decides she needs to be taught a lesson, and he is just the man to do it.
A kidnap arranged by a husband goes wrong when the wrong woman is grabbed; butt he group manage to reticfy the problem and have twice the fun in doing so.