After returning, Aubrey Fleming, a young ambitious woman, who has been kidnapped by a serial killer and disappeared for a long time, when she returns, she claims to be another personality, the thing that challenges her.
It's possible the movie seemed to Lohan and/or her handlers a means to transition from her Disney movies into "adult" fare. It's also possible that no one read a script.
The troubled star writhes her way through a red-lit pole dance in the opening credits and shrieks her way through a prolonged torture-porn sequence; after those lurid turns the movie settles into an indifferent mystery plot.