IT nerd "Hau" (Kaki Sham) is an ordinary, shy, man who lives in Hong Kong whilst admiring the pretty girls from afar, but with no real prospects of ever engaging with any of them - even if he has developed his own dating app! Then, suddenly "Lee" (Cecilia So) decides to allow him to date her - but only on a Saturday. That ought to have got alarm bells ringing, but anyway the two get along amiably ver mais...