Allarme a Scotland Yard: sei omicidi senza assassino

It begins as a dull whodunit, with bad acting from most of the supporting cast. However, one murder scene towards the middle (the one which starts with a chase in a park and culminates in someone's backyard) is nevertheless filmed with some virtuosity. Some of the humor which I could catch, esp. the bickering between the inspector and his assistant, was quite funny: for instance, I laughed a lot at at the scene where the inspector rushes up the stairs but his assistant takes the elevator. As the movie progresses things get more interesting with bizarre set-ups and bizarre villains appearing and adding much delight. Eventually, we even have the delicious stereotypical mad scientist lab with flashing light bulbs and bubbling tubes... Rather than giallo imagery of the times (early 1970s), this has vintage pulp imagery. And it was also nice to watch a cute and pretty Eva Montes in another Franco movie.