A group of friends gathers for a birthday by the sea, only to face the looming possibility of the world ending within hours, transforming one fleeting, endless night into a life-altering experience.

RIC's and FLEUR's fates intertwine in Ric's loft where Fleur installs Plato, the AI model she has created. Romance ensues but when Fleur learns of Ric's secret nights of debauchery, she takes revenge. Plato learns and takes control.

When his daughter decides to buy a crumbling Tuscan villa, Eric rushes to Italy to talk her out of it — and instead finds beauty, romance and new purpose.