A grand Georgian house, now a residence for wealthy retirees, becomes the setting for a cunning plot when thieves set their sights on Lady Moira: a rich and rather difficult resident. The plan is set in motion after the daughter of the house carelessly mentions the splendour of Lady Moira's jewellery to her new boyfriend. Seizing the opportunity, the thieves hatch a scheme. As a play is staged at the house, it seems like the perfect moment for the thieves to strike. But when tensions rise and the thieves fall out, chaos ensues. What happens next?