The bedroom of a flat in Madrid. It's Sofia's bedroom, she's a luxury escort. Her new client discovers the mysterious name that she has tattooed on her leg: "Diana ... Diana is your real name?" He introduced himself as Hugo but in reality he is called Janus. He appears to be an educated businessman, a modern and close entrepreneur. Is he? Sofia's apartment will become the setting for a disturbing game where the personalities they both hide will be revealed, like layers of a complex onion that will break off until they reach their heart. And the key to Sofia's lies in unveiling who Diana is and what it means to her.