Transferred to a famous asylum after being arrested for his wife's murder in fin-de-siècle Paris, a man with an eidetic memory is investigated by a doctor and a police officer who discover links between the bizarre crime and the highest and lowest establishments in France.

"How well do you know the man you love? One evening as the sun is setting, Amelia Madison's car slides into the sea off Mason's Pier. Her body is never found. Two years later, Elena Langdon meets Nicholas Madison. She is grieving the loss of her mother, he is grieving for his wife. Together they can help each other. Now Elena is living with Nicholas. But Elena doesn't really know him. She doesn't know what he is capable of. More importantly, she doesn't...