i do not understand movie like this and it seem that someone down the line ( director and screenwriter ) to address very obvious plot hole and inconsistency . 1. in the first scene and the man who get hit by the train and first off and he be clear of the train and press against the wall and but suddenly for no reason he leap in front of the train at the last minute . also and if you die of your bad fear and a the female lead later reveal and then get hit by a subway train be this guy bad fear . 2. the german kid while he just seem to have bleed to death in the cell . what be his death fear . 3. the ghost girl while she a hemophiliac . wouldn not she have bleed to death well before 48 hour . 4. if your computer explodes after view the site and why do not the computer expert girl computer explode . it seem only leave in tact so the male lead could log on to that site . 5. at the end and the male lead summons his partner when they have the killer corner and he say and i do not have time to call for backup . what . your cell phone service only allow one emergency call . and if so you use it to call your useless up to now partner . or why wouldn not you tell him to call for backup on his way . 6. the partner manage to get there ahead of time and get kill and get string up and even before the male and female lead even make it there . all by a guy with a scalpel and surgical dress on . 7. if ghost girl be tie down and tortured and how be she able to write a note and stick it in her lipstick case and swallow it without the mad doctor knowing . secondly and he autopsied her and put everything back . wouldn not he have check the stomache . that all . great concept and poorly execute .