Emma is prodigy from a state school, her life has always been a struggle. She is sent to a prestigious music school, where she is determined to shine. She meets a pair of wealthy, sophisticated twins; Sophie is the outgoing twin, Matilde is the quiet one. They come into Emma’s life like a whirlwind buying champagne and taking her to parties, then they begin to dominate Emma.
Shy Matilde commits suicide. After this Sophie flourishes. But odd things are happening to Emma, she misses time, waking up in strange places, bizarre dreams. Something, or someone, is consuming Emma's mind. Terrified, Emma begins to doubt everything and everyone around her.
The book is a good read, if you like psychological thrillers, this one is for you.