Lottie Sprigg and her employer arrive in glitzy Monaco where Lottie finds a mysterious note which threatens murder. Before she can act on it, a body is found in a private room at the Monte Carlo Casino. Who wrote the note? Lottie takes a gamble on discovering their identity. But as she and her dog Rosie navigate a web of lies, new dangers emerge. Lottie has her work cut out in a place where money means power. Monaco may be fashionable and glamorous, but the hairpin bends on its twisty roads can be very perilous indeed...