They had a really good foundation for a good horror movie here, using a long time Filipino folk myth about the Kumakatok (Door Knockers) as the base and concept and yet fail to fully realize it.
The writing was just terrible and full of plot holes. It was a stringy mess of random ideas that went nowhere. On top of that the movie gives the audience a huge middle finger with that lazy half assed ending which really annoyed me. There was no resolution whatsoever, it's like seeing a splattered mishmash and that's it. You don't know what happened, why it happened and if it was ever cleaned up.
The execution of the script wasn't any better, it just added to the train wreck. There were scenes that didn't make sense, continuation that was not polished and all around a jumbled mess.
