Like with most horror movies almost all the characters were stupid save for writer who was trying to finish a book and so he left what sounded like his difficult marriage to live at this creepy apartment building (not mansion) so that he could focus on his work.

The pharmacist kind of deserved her fate considering she was willing to run off with the man whom she'd been having an affair even after learning he killed his wife and kid.

The student who'd returned from abroad should've left his "friend's" apartment immediately after arriving there and seeing what he saw.

Though nicely done for the genre. The audience never gets the real story behind why the apartment building is haunted. It's said that it used to be the sight of a church, but then a dead mummy is found in one apartment chain up in what appeared to be some ritualistic killing with a large amount of money hidden in a nearby closet. Weird. Also, it seemed that strange things happened to the residence of the apartment building even when they left the building, which wasn't explained. It was also never made clear how long the property had be closed and condemned and how long ago all these incidents happened with the people who'd gone missing while living in the building.

Despite these unknowns, this had some nice vignettes and a great, yet predictable, twist in the last chapter. The "scares" weren't scary, but this did have a creep factor. Good movie. Definitely worth a rewatch if one is in the mood for horror.