A dead woman is dragged through the woods with no pants on. Her panties are clearly seen.
A woman is attacked and her shirt is torn open. She ends up running around in her bra and skirt.
A woman is attacked, and her dress is torn in multiple place revealing her bra.
A woman is murdered while in a thin nightie.
A woman is drowned in her bra and panties. Her nipples can be seen through her bra (one nipple is especially visible in a closeup), and her dark pubic hair is evident through her white panties.
One character accuses another of being the killer because of his impotence.
No outright nudity but in the drowning scene we are able to see a nipple through the woman's bra and her pubic hair through her panties, all of the women are killed while either their bra or panties are exposed (sometimes both).