Bill Chambers’s review published on Letterboxd:
If this had been my first Bertolucci I would've stopped there. The kid's mom rubs his dick when he's going through heroin withdrawal, but does he thank her? No, because he sucks. And so does she. A giallo where the killer never shows up so the victims never receive their cue to stop being assholes. Fred Gwynne is in this for 2 minutes; they're the best 2 minutes.