There is a 3 second scene with a man thrusting on top of a woman.

Dahmer gets close and lies on top of some men and thrusts from behind them. It is implied that he raped many men.

A man is seen only in is underwear wandering around.

Dahmer lies on top on Khamtay.

Dahmer and a male character embrace during a seduction scene.

Dahmer dismembers a person. It's not seen very clearly, but still graphic

Dahmer hits a man in the back of the head with a weight; there is a little blood.

Dahmer cuts a mans arm off (not seen, but heard) and it's implied that he cuts the rest of him up.

Dahmer cuts open a mans chest and sticks his hand inside and squishes it around a little bit.

Dahmer uses a drill to drill into a man's head. It is not gory, but he looks at a tiny bit of blood on his fingers after

Dahmer strangles a man with his bare hands

15 uses of "fuck" half of them used sexually, and includes three uses of "motherfucker".

a few swears

Dahmer has a drink and a cigarette in almost every scene in this movie.

Dahmer drugs several men and rapes them.

In a flashback, Dahmer smokes weed with a friend of his.

This movie is very disturbing. The rapes may be frightening to some people.