Both The Shark Hunter and Day of the Cobra feature director Enzo Castellari punching actor Franco Nero in the face. Is this some sort of in-joke?
Nero scruffs up as an Italian private investigator living in San Francisco as some sort off disgraced ex-cop. Down on his luck, he's contacted by Narcotics agent William Berger and given the task of going back to Genoa to track down a sinister figure called Kandisky, whom we see killing a guy who looks like Alan Partridge and stealing a key off him. This Kandisky person seems to be Nero's mortal enemy, and he heads off to Genoa to kick ass.
Once there, he enters a shady world of drug smuggling, imports, and Massimo Vanni wearing dodgy porn moustaches as he tries to track his prey. All is not as it seems, however, as he's followed everywhere, Kandisky starts taunting him by phone, and even glamourous night club ladies might actually be kung-fu expert men in drag.
This one takes a while to get cooking but its plain sailing due to Nero's eccentric Cobra character, who constantly chews gum and leaves it everywhere while bouncing a rubber ball all over the place. There's plenty of action, mostly of the punch up kind at first, but as the story goes on it becomes darker and more violent, with Nero not being able to trust anyone. He does have time to bed Sybil Danning a few times. Or maybe he was checking she wasn't a dude.
I do have a couple of niggles, however. While I'm always up for Nero shooting Massimo Vanni, he'd already shot him in the balls in High Crime, and Nero loses a kid to a speeding vehicle, like he did in the film High Crime. I have a sneaking suspicion that Castellari might have been running out of ideas here, which is why perhaps he moved on to ass-kicking post apocalyptic films.
You can't fault the back up cast here: Big Romano Puppo and Wee Massimo Vanni on hired goon duties, Ennio Girolami, William Berger, even Enzo's daughter Stefania sporting some dodgy looking dreadlocks. It all worked for me.