The drama is a comedic view of the high cost of living and struggles regular Hong Kong citizens go through in order to be able to own property in modern Hong Kong society [2] Jack Lau Yiu-ming (Vincent Wong) and his girlfriend Annie (Toby Chan) diligently saves up enough to purchase a flat to plan their future together.

In order to make their monthly mortgage payment the two live an extremely frugal lifestyle where they can't spend on extra luxuries.

Later Jack finds out the company he works for deals in illegal activities and all upper management has been arrested by the police.

He messes up even before his interview starts when he barges into CEO Joyce Lei Oi-wah's (Kiki Sheung), private elevator.

It seems his ex-girlfriend Annie rented her half of his home to her friend Cecilia Choi Kin-ching (Selena Li), in order to help Jack with the mortgage and hopefully get her share of the flat payback to her sooner.

The two get off on the wrong foot and soon Cecilia makes Jack's life miserable by setting up boundaries and strict rules at his home.

As it turns out Jack was hired because the girl he saved Peggy Suk Bik-gei (Eliza Sam) is Joyce's niece who just returned to Hong Kong from Canada.