This is not your typical murder mystery. It's set in a wartime British hospital. But it's not in the warzone. And it's not in London; it's outside the city limits in the countryside. Unless you're a fan of '40s British cinema, you probably won't recognize the actors. This shouldn't concern you, however, since they're all so well-cast. They fit their roles beautifully, all except the detective. He seems off, but then, he's supposed to seem eccentric. And eccentric is something Alastair Sim does beautifully.