The call from the graveyard

Once upon a time when a man named Manish was murdered by his own friend named Chunky at night. His family was very sad that his child died but the friend was happy because the police has suspected someone else

But he was also scared that the police should not suspect him. After some years there was a call to the police the police answered the call and said hello 10 times but the reply was always inaudible. Then the call got cut then police tracked the number and the number was from the graveyard

They opened a big door of the graveyard and then shouted hello? The reply was still inaudible they went near and a grave opened by itself and the police got scared and the voice came I am Manish the murdered person. The person you suspected has not done anything. I was murdered by Chunky and his phone number is 8002465123. Please catch him and then the police turned around and couldn't see anyone

And the police called Chunky and caught him and from then the graveyard was closed forever