As with the previous two entries in the unofficial Animal Trilogy, Four Flies on Grey Velvet is short on explicit gore but brimming with atmosphere and artistic ingenuity, with set-piece murders primed and mined for maximum tension. It was with this film that Argento began to cement his particular style and is something of a crucible for future ideas. The murder of Roberto's maid in a local park foreshadows John Saxon's fate in Tenebre, and with its sudden lapses in time and attempted escape through the cobwebbed space between two buildings (to a soundtrack of whispers and sighs) it also sows seeds that would flourish in Suspiria. Other visual motifs (crimson curtains, extreme close-ups, inanimate objects suddenly wielded by a seemingly maniacal camera) would be repeated or re-jigged in Deep Red, Phenomena and Opera.
Argento's original intention was to have a gay protagonist and though the character of Roberto is still open to such a reading - his victimisation being as a result of a fear of being outed (as a murderer) has obvious correlations (note also Brandon's shaggy mane v Farmer's gamine crop or the rather tame bathtub scene with Francine Racette which sees Roberto playfully seducing his mirror image) - the more overt references are passed to Jean-Pierre Marielle, who brings immense likability to a small role and whose swish factor is tempered by a steely determination to finally cracking a case. A frosty Farmer acquits herself well, though Brandon is merely okay. Argento's fascination with weird science (here ludicrous by design but ingenious in execution) gives the film its animal-themed title, and the finale boasts one of his greatest sequences - a stunning, slow-motion shot of a car impacting with the back of a lorry, which marries chillingly beautiful aesthetics to Hollywood folklore, scored with Morricone's haunting "Come un Madrigale".
Four Flies is a solid giallo and an important entry in the Director's canon which bears repeated viewing, blurring gender roles and sexual identity, adding subtext and hit and miss humour, asylum flashbacks, well-executed deaths and a recurring nightmare in the form of a sun-bleached, public beheading - the significance of which turns out to be twofold. It also has in spades what a good Argento giallo conveys like no other, that chilling feeling of something wholly alien on the loose in human form.
