There is a long history of fiction that presumes that anyone can seduce anyone for whatever nefarious purpose. "I need access to the doctor's files. No problem; I'll just seduce the receptionist." I don't want to spoil it for those who haven't heard it, but the twist ending was not only obvious, but unnecessary. Think about it; if the "twist" didn't exist, everybody's fate would still have been exactly the same! Thriller, no supernatural elements. 