Inspired by the true story of Herman Mudgett, a young cunning serial killer, whose great grandfather is H. H. Holmes, a well-known serial killer at America, who committed about hundreds of murders, so he follows his footsteps in wreaking havoc, as he kills about five in London.
Whether circumstantial and compelling (or more likely not), American Ripper sure looks like another one of those summer potboilers that promise the moon but deliver only a hunk of green cheese.