The eponymous Fleabag returns, joining an uncomfortable family dinner to celebrate Godmother and Dad's engagement.

Alongside familiar faces - uptight sister Claire and her alcoholic husband Martin - Fleabag find herself intrigued by Godmother's new priest. The evening comes to a tempestuous end, however, when an unexpected attack brings old tensions bubbling to the surface.

Fleabag helps with an event at Claire's work which inevitably ends in disaster, but an introduction to Claire's colleague proves intriguing, and a chance meeting with a stranger opens Fleabag's eyes.