I can see why many people dislike this film. Some of the scenes in it are more suggestions of reality than reality itself. I personally liked it. The settings were superb. The dancing wonderful. Cholo, melting the girl's heart just by fancy footwork is amazing.
Argentinian Tango musicians will tell you that they have witnessed many couples copulating while they dance the tango, hence the blindfolded trio makes this suggestion. (Since writing that I have been informed that tango musicians WERE sometimes blindfolded in real life.)
The costumes and especially the lighting are terrific.
The relationship between the two central characters is complex: less talk more S & M.