The Shimmering 2023 one on netflix

A seemingly minor head injury leads to the fact that a young beautiful girl falls ill with a mental disorder, the manifestation of which is referred to by the medical term “flicker”. Now two completely opposite people live in her body. One of them loves and is ready to love, the other is ready to kill everyone in order to achieve her goal. It is unknown if they will get along in the same body and what will happen when one of them decides to kill the other.