I see a new film has been released about dybbuk possession, The Unborn, "a Jewish take on The Exorcist" according to our film reviewer Gerald Aaron, who gave it a dismal one-star rating.
I can't say we have had many dybbuk sightings over the years, but a woman from the South-West did ring us once to say she was being haunted by an 18th century Jewish man - he appeared as a kind of davening silhouette and she guessed his era by the shape of his hat - and did we know of any exorcism prayers we could recommend.
Another time I asked a member of a Beth Din what they would do if someone came to them claiming to be possessed: advise them to see a psychiatrist, he said.