The men are universally pigs in the more-or-less misanthropic A Triangular Trap. Ugly pigs. Vile pigs. Run-of-the-mill pigs. The stalker who rapes fashion designer Choe Ji-suk (Mun Suk) then holds her hostage for months so she'll have his baby... He's certainly a pig. So is the diabolically double-crossing self-defense instructor she's dating, despite his having saved her from a random thug with damaged lips. As for the family lawyer, he's shockingly indifferent when she recounts her life-changing trauma. Your "not all men are bad" argument will fall on deaf ears here; that one friendly neighbor is a case of the exception that proves the rule.
Not that the women come off smelling like roses in Lee Man-hui's stylishly '70s crime pic. A sister of the traveling caftan this is not. Choe Ji-suk's customers and co-workers look at her as a source of gossip and sartorial inspiration. And don't tell me the maid is a good person either, simply for doing her job well; she also spreads superstition and condemns her mistress for accepting the family inheritance. No, with jerks and Judge Judys everywhere, our heroine has two choices should she survive the attacks on her body and character: to deteriorate or to retaliate. In A Triangular Trap, she does a bit of both, taking breaks periodically to play a flamenco guitar.