New York City locations...
The late Lucio Fulci seems to have liked to film some of his movies in New York City, USA as the backdrop to his movies. Not just this movie but Zombie, House by the Cemetery, New York Ripper, Manhattan Baby, Murderrock, among others. I used to live in New York and I enjoy watching some of the random locations Fulci chose to shoot the locations scenes. Example: the exterior scene of Madame Theresa's apartment is located at a brownstone apartment house on the corner of West End Avenue and West 76th Street, Manhattan, and the cemetary location is Calvary Cemetery in Woodside, Queens, New York. Nothing that special about the locations, but nice to see them in random movies that I like.