Everyone has a secret this Christmas

"My name is Ernest Cunningham. I used to love reading Golden Age mystery novels, until I found myself stuck in a random career amidst real crimes. This Christmas, I had hoped that any respectable killer would take a break and relax during the holidays. But I was wrong. Here I am, backstage at the show of the world-renowned magician Rylan Blaze, whose patron has just been murdered. All the suspects are professionals in the art of deception, masters of disguise: the magician, the assistant, the executive, the hypnotist, the identical twin, the consultant, the technician. My clues are more mysterious: a suspect covered in blood, with no memory of how the blood got there. A murder committed without entering the room where it happened. And the timing, because as you know, it's Christmas. If I can see the truth behind the illusion, I'm confident I'll solve the case. After all, a good murder is like a magic trick, isn't it?"