How happy Natasha was when she met Marina, the professor’s granddaughter. She’s older, smarter, and let’s face it, she’s a lot more interesting than other girls! But very soon the young, inexperienced Natasha began to feel that she had looked into a terrible, dark abyss, and now she was destined to live in constant, reckless fear. Until now, the events of twenty years ago appear before Natasha’s eyes in the form of eerie pictures-memories. And it turns out that nothing is over yet! There is only one hope left for Christmas Eve, which will throw off the false masks from everyone.