Many many plotholes
Right after Tim is released, from the mental institution, they're in a restaurant and Kaylie gives Tim a check, telling him its his half of the estate?? What estate??
Another plothole: they survived the attack, or whatever, from the mirror, that killed their parents. Why the hell did Kaylie, who is rich (doing what??) buy the mirror and get it back??
They made it!! Why not let go of the past?? Kaylie is directly responsible for Michaels death, her own death and Tim getting locked up again.
Why was Tim accused of killing the parents? Clearly a little boy couldn't have chained his mother and made her eat pottery. And why was he locked up all of those years? Didn't Kaylies eyewitness account tell them he was innocent??
Why did Kaylie just let her brother rot away in a mental institution for 11 years??
Why don't Tim stay clear of Kaylie once he realizes shes's still obsessed with a past that locked him up for a murder he didn't commit?
Why the hell didn't Tim and Kaylie just ran away and called relatives who could come pick them up??
Why is Kaylie telling Michael to call her every hour to check on her, in case her brother snaps, if she believes her brother is innocent?? And yes it's personal you bitch!!
How can an ugly child version of Kaylie with pale skin and orange eyebrows grow up to be a beautiful woman with dark eyebrows and different eyecolor???
I could go on about how stupid this movie is. I actually enjoyed and uit was scary but just entirely too many plotholes.