I Deal Friendship

It’s a murder mystery of Ankush Desai. His best friend Kush is accused of killing. He is a long time drug addict. Police interrogate him to find out the truth behind. Kush tries to Explain, how he is not guilty & Ankush was killed by a ghost. Now the question is how will Kush prove his innocence because the law needs evidence & how can he prove the very existence of ghosts when u can't see them.