Lara Jean's love life goes from imaginary to out of control when her secret letters to every boy she's ever fallen for are mysteriously mailed out.

When she learns she's in danger of losing her visa status and being deported, overbearing book editor Margaret Tate forces her put-upon assistant, Andrew Paxton, to marry her.

Two best friends become rivals when their respective weddings are accidentally booked for the same day.

In the glamorous world of New York City, Rebecca Bloomwood is a fun-loving girl who is really good at shopping-a little too good, perhaps. She dreams of working for her favorite fashion magazine, but can't quite get her foot in the door-until ironically, she snags a job as an advice columnist for a financial magazine published by the same company.