Somewhere on the French Riviera, tucked between glitzy Monte Carlo and Cannes' red carpets, lies the sleepy town of Bellevue-Sur-Mer. Sheltered from the glittering melee, it is home to many an expat – although it hasn't proved as peaceful as expected. Now an enterprising band of retirees has resolved to show it's never too late to start afresh and open a restaurant. Snapping up a local property and throwing themselves into preparations, Theresa, Carol, William and Benjamin's plans are proceeding unnervingly well. But when Theresa encounters a mysterious intruder, she begins to wonder what secrets the building is concealing. Meanwhile Sally, an actress who fled the stage to live in quiet anonymity, has decided not to be involved. She's far too busy anyway, shepherding around a gaggle of A-listers, including a suave Russian with a superyacht and a penchant for her company.