Parasites.

An ordinary urban girl who has lost part of her memory meets a wealthy, handsome and considerate CEO. From thinking that she has encountered a pig-killing plate, to devoting herself wholeheartedly, she resolutely resigns and follows him to live in another city and live in a big villa. Dream fairy tale days. Until one day, she woke up and walked to the mirror and found that there was another face standing inside, and all her identity documents suddenly changed to "her" in the mirror.