Siyaah (not to be confused by another “Siyaah”), is – as its Producers say – “a classic tale of a modern family haunted by their own disbeliefs”, a “skin-crawling punch of horror which will leave you squealing with fear and anxiety”.
From what footage is cut-into its promotion, a young girl is possessed by the supernatural (gnashing teeth, scruffy hair, growling voice of evil, defiance of Sir Issac Newton’s exceptionally-obvious breakthrough). Of course, disbelieving adults will follow suit soon enough.