This Sitges film festival award winning murder mystery, written by and starring the genre versatile Paul Naschy, is not a full blooded Italian giallo, but could easily fit in with Sergio Martino or Umberto Lenzi thrillers of the era.
Naschy plays a heavily drinking and crippled ex-trapeze artist, Pedro Dorian, who makes for an entertaining lead and red herring along with a small number of other suspects who could possibly be the killer with black gloves and black loafers mimicking the murder habits as in the case of Jack the Ripper. This premise should give viewers an idea of what to expect which primarily concerns a lot of bickering between Scotland Yard denizens and no shortage of violent murder scenes involving semi-nude prostitutes, among others. Definite highlights include a stumbling drunken Naschy as well as several good old fashioned fist fights.
A montage style recap of the murder victims at the end reveals that there were in fact eight murdered women in the movie which goes to show that “seven” must be thought of as a very marketable number to use in a giallo title.