On leave in wartime London, a British intelligence officer stumbles from a night at the theatre into a crime that points straight to a hidden spy ring. A beloved music-hall star, a sealed package, and a midnight murder draw him into the Service and onto the trail of an enemy network working behind blackout curtains. Disguises, code names, and false trails lead from stage-door corridors to safe houses and country estates, where charm masks treachery and every ally might be an agent provocateur.Pressed into a risky masquerade, he crosses lines of loyalty to bait a ruthless traitor and stop a plot that could widen the war. Tight pacing, authentic tradecraft, and vivid wartime detail drive a story of infiltration and counter-plot, as the hunt closes on a secret worth killing for-and dying to keep. From music-hall footlights to shadowed docks and rural retreats, the chase reveals how easily glamour becomes cover, and how loyalty can be tested by fear, temptation, and the lure of power.