Memory Puzzle (On Hold Temporarily)

ON HOLD TEMPORARILY.
3 different people in one body.
"Why did I turn this way? I need to solve my memory puzzle."
Monica White is a 25-year-old heiress of "VA Group", a multinational conglomerate company headquartered in USA, LA.
Because of huge incident that happened in her childhood, she's now suffering with mental illness. Her memories shuttered in many pieces and she doesn't remember them. Every morning she has to deal with some trouble. That could be bad or worse. Every time she wakes up, she is in different places with different kinds of people. She has no idea what happened. She can't even go to hospital and get psychotherapy. She has to keep it secret from her family. Why?
She has no choice but to gather her lost pieces of memories by herself. Or else many dangers are waiting ahead of her future.
And what kind of secrets does her family have? She needs to remember what happened in the past.
But how will she gain her memory? What will be the key to her lost memories?