Mentions the word "tits" when speaking about a book.

R violence type: blood and graphic.

Multiple murders involving a razor blade (bloody but not very graphic).

Many dead bodies are found.

We see the silhouette of a dead tortured man whose penis has been stuffed in his mouth.

A man stabs himself in the hand with a pencil.

A man is kicked so hard into an object he dies instantly.

Infrequent strong language, including 16 uses of "fuck" and derivatives, plus one use of the slur "faggot".

Cigarettes smoked in one close up scene.

A lady smokes on a pipe.

Brief alcohol drinking.

During a surgery sequence a young boys skull is being opened, a blinking eye ball can be seen between his brain. It is told that the boy has an undeveloped parasitic twin.

2 jump scares.

The whole movie is about the murderous alter-ego of a man.