[1] Shin Do-young is a popular TV news anchor who seemingly has it all: good looks and brains, a cushy job and a privileged upbringing.

But to the couple's surprise, they conceived a few years after Do-young's adoption, which led to the birth of their biological daughter, Ji-young.

Afraid of losing the love of her adoptive parents, the teenage Do-young abandoned her five-year-old sister at a train station.

Twenty years later, Do-young hires a cheerful young woman named Yoon Sa-wol as her personal shopper.

When Sa-wol learns the truth, she plans her revenge by taking everything from her erstwhile sister, including the man Do-young loves.