The Wailer (2006)

There is basically only one scene in it that has any nudity, the first night in the house four of the six are playing cards and one guy wins and so the other three are to briefly remove one piece of clothing. One of the ladies removes her top only to show that she has some sort of body painting of flowers over her nipples. The other more well endowed lady removes her top and fully exposes her breasts rotates her torso around and then puts her top back on. The other guy removes his shorts to show comic character boxers.

A bit of a spoiler: You never actually see La Llorona slice anybody up, but you do see the gruesome aftermath of her work after she hunts each one of them down.

There is a lot of drinking and some drug and marajuana use in the movie.

From the start it's very disturbing, La Llorona drowning her children and then murdering her husband and herself. Partial comedy and also horror. The film has a disturbing and creepy atmosphere.