Azim's House

Azim was a Curtin student. He was in fact a football player. He stayed in a typical student house in Desa Senadin. It was a normal house with 3 bedrooms. He stayed there with 2 other housemates. Azim had the master bedroom with the adjoining bathroom.

One night, both Azim's housemates were out, and Azim was home alone.
He was taking a shower when someone knocked loudly on the front door. He heard it and went out to open the door. But there was nobody there.
Azim went back to his bathroom, and continued showering.
Then there was a loud knock on his bedroom door. Azim got out of the bathroom and opened the bedroom door. Again, there was nobody there.
Azim locked his bedroom door and went back to his bathroom.
While he was showering, there was a loud knock on his bathroom door.
This time he ignored it.
Then, there came a loud knocking on the roof...

Another time something weird happened at Azim's house, Azim was studying at his desk when he felt a presence behind him. He looked around, but there was nobody there. He continued studying, and again, felt something behind him.
So he threw a pen over his shoulder without turning around.
And the presence disappeared.