In 1941, The advancing Japanese army captures a lot of British territory very quickly. The men are sent off to labor camps, but they have no plan on what to do with the women and children of the British.

Based on a famous stage play and set in the year 1912, an upper crust English family dinner is interrupted by a police inspector who brings news that a girl known to everyone present has died in suspicious circumstances. It seems that any or all of them could have had a hand in her death. But who is the mysterious Inspector and what can he want of them?