i be rather disappoint by this effort from freda and who visual style i have always admire . iguana be by comparison to many of his other movie rather clumsily assemble and freda be not very sure in his timing of the shock effect . there be compensation represent a thrill chase on a bridge and above average performance and nice dublin location and a surprisingly nasty conclusion that involve a crazed killer beat up an old woman and torture a semi nude 16 year old . however and these compensation be not enough to make it a worthwhile movie and even for fan of the giallo genre . the plot be uninteresting and rather muddle and the score and cinematography sub standard ( for a film direct by super stylist riccardo freda and i mean ) and what be this hilarious obsession with sun glass . accord to rumor riccard freda wasn not too happy with iguana himself and use the pseudonym willy pareto in the credit . it not that it a bad movie and it just that it should have be so much good consider everyone involve .