N or M?

In Agatha Christie's N or M?, married spy duo Tommy and Tuppence Beresford are tasked with a critical mission during World War II: to infiltrate a seemingly innocuous seaside boarding house and unmask a dangerous Nazi spy. Amidst a diverse cast of guests, they must discern who among them is the elusive 'N' or 'M' before treachery threatens national security.Why You Should Read? Explore a unique blend of wartime espionage and classic mystery. Follow Tommy and Tuppence Beresford's dynamic partnership as they navigate danger. Experience Agatha Christie's signature suspense and character development in a thrilling setting.