At the end of Chrysalis (2007), it turns out that the real daughter of Professor Brügen, Manon Brügen, lies on the bed in a coma at her mother's clinic. So who is the healthy girl? Is she another person who has had aesthetic surgery, or is she her twin sister?
In this Coventry Telegraph - The Geek Files review of the movie, they state this:
I do not know if this authoritative, but seems to me the "kicking" version of Manon is a duplicate.