Brief and moderate sensuality. Little if any nudity/sex.
There are only three really bloody scenes.
A guy falls down some stairs, gets knocked out and then has some blood on his forhead.
A guy apparently stabs an old man to death and then wraps him up in sheets and takes him down to the basement. A fair amount of blood is present.
A guy slits his own wrists at the end of the film. A lot of blood is present, but the scene doesn't last too long.
There's some shouting and arguing thru/o.
The only real reason why the film is rated R is because it has 30 F-words and 1 use of the word c*nt.
There's at least one other use of each milder profanity as well.
Occasional drinking and smoking thru/o.
The whole film is frightening and it takes a toll on the main character.