Everything is fine in Elena Gromova’s life: she is a respected leader, a beloved wife and a happy mother, ready to do anything for the sake of her only daughter Sveta. When she needed additional chemistry classes, Elena immediately found an excellent tutor. Student Natalya is a beauty, smart and talented teacher, a true role model. Is it surprising that she quickly became the best friend of the trusting and simple-minded Svetka? But for some reason Elena really doesn’t like this friendship between the girls: in Natalya’s beautiful eyes she detects a feeling similar to hatred. Elena doesn’t know the reasons... Or doesn’t she remember? Maybe if you look further into the past, there will be a reason? Elena had to remember a lot when the unexpected happened: Natalya kidnapped Svetka and took her to an unknown direction...