同じ高級マンションに住む 3 人のご近所さんが、自分たちが暮らすマンションで突如起こった殺人事件の謎に迫っていく物語。

Meet Fleabag. She's not talking to all of us; she's talking to YOU. So why don't you pop your top off and come right in? A window into the mind of a dry-witted, sexual, angry, porn-watching, grief-riddled woman, trying to make sense of the world.

A software developer and her friends become entangled in a murder case involving her dating app and a mysterious man who seems to be hiding something.