Watch it at Amazon
A woman is raped by a man as he mutates (seen in a head and shoulders shot, no nudity).
Two necks are snapped.A man's chest is ripped open by a mutant.A man's face is bloody.A root grows into a man's chest.
Fuck and asshole said once.
None.
Since the whole movie is about a man being attacked by mutants in dark underground tunnels, it could be frightening to some viewers.