Most of the male characters are shown either shirtless or wearing widely open shirts in dozens of scenes. The male lead remains fully clothed in only about 5-10% of the film.
During a sadistic police interrogation in a torture chamber, two male characters are forcedly stripped and it's strongly implied that they will be forced to have gay sex with each other. The sex itself is not shown, though.
There are about three post-coital scenes, showing male and female characters naked or half-naked. Sexual acts are never shown, with exception of one brief scene of fully naked woman masturbating in front of a man.
The lead's wife is shown topless in two scenes.
The wall of a prison cell is partly covered by erotic photographs of naked women.
The male lead flips through a porn magazine in one scene.