Review Tag Movie Japanese

I just finished watching this movie..
And i think
it's rather complicated.. Really hard for me to understand..
At first, I thought that the cause of it is a ghost or naughty spirit.. but there's no ghost or spirit there.. weird..

And so my conclusion of that movie is :
You can't deny your death eventhough you try to run from it.. it's your destiny..
Just like Sure gave an explanation with a feather.. this feather will fall to the ground..