As far as I can remember there is no nudity however some points below:

You see the lead woman in her bra and knickers at several points throughout the film. You see the lead man and woman kiss passionatly (as if they are about to have sex).

In one scene the woman has her legs in stirrups.>

Lots of blood seen and dead bodies throughout.

Its intimated that a doctor is "performing" an unorthidox abortion.

Language throughtout including the F word

Main woman smokes through the film

Its intense throughout the WHOLE film and lots of frightening moments.