A man rubs a woman's thigh, he puts his hand up her dress, removes her panties (we see her bare thigh) and the man unfastens his belt he then proceeds to "put it in" you hear a moan and then they are interrupted by a knock on the door.

A man unzips a woman's dress (her bare back is seen.)

We see a woman in a bathtub (her bare shoulders and legs are visible.)

We see a woman's bare back as she zips up a nightgown.

We see a woman wearing a shirt and panties as she pulls up a pair of pants.

A man and woman kiss.

A man and woman hug passionately.

A man shoots a man in the head with a shotgun (blood splatter drips down a wall, and we see that the body is missing part of its skull and face and it lies in a pool of blood and matter); we see the corpse several other times throughout the film.

A man stabs a man in the stomach twice with a knife, causing him to moan in pain; we see some blood on the man's shirt, but no visible wound.

A woman stabs a man in the stomach twice with a knife.

A teenager stabs a man in the stomach with a knife.

A woman screams off-camera, implying that she is being stabbed.

A man lies dead in a pool of blood, he has bloody cuts on his face, and his shirt is covered in blood.

A man grabs a woman and slams her head into a wall, she falls and we see a bleeding cut on her cheek.

A man is thrown violently to the floor (there's no blood and he is still conscious).

A man runs toward another man, and we hear a thud, implying that he hit the man.

A woman who is tied to a chair struggles to free herself, she has a large cut on her face which bleeds and a man who is also tied to a chair has many cuts on his face which are also bleeding.

A woman, whose face and clothing are bloody, screams.

A woman cuts her hand on broken glass and we see her hand covered in blood.

A man bandages a woman's bloody hand.

A man pushes a woman back to the ground to prevent her from looking at a dead body.

A woman trips and falls into a hole, twisting her ankle and she moans in pain.

We hear a man scream in pain, and a woman screams.

A man drags a semi-conscious woman, leaving a trail of blood.

A man hears loud knocking at the door, he approaches the door and an ax head breaks through from the other side.

A man fires a gun at a door, trying to hit someone on the other side.

A floor is covered in blood

A woman is shown covered in smears of blood all over her face and abdomen.

Four uses of "fuck"

Shit used a few times bitch a few times and other not so bad words.

People drink alcohol at a party.

A man and a woman drink champagne from a bottle.

A woman drinks a beer.

We see an inebriated man.

A man drinks alcohol and then immediately drives a car.

A woman smokes cigarettes several times throughout the film.

Very scary.

A woman is frightened and startled many times; she screams in horror.

A man walks down the hallway slowly, without realizing there's a masked man behind him, armed with an axe, ready to kill him. Although the masked man doesn't kill him, the scene is very scary, especially with the record music on.

A man suddenly knocks through a door with an axe.

A woman screams when she glimpses at a masked person in her window.

At the beginning a boy calls the police and is in a distressed mood and is upset. His voice may upset some viewers.

Three people wear frightening masks, stalk and chase a man and a woman through their isolated vacation home.

A woman smokes a cigarette when a masked man suddenly enters her house from a dark hallway behind her (he watches her for some time and he's gone when she turns around, then she hears a thumping noise from where the masked man was). It is one of the scarier moments of the film.

A couple is shocked and scared when three masked strangers appear to be stalking them both inside and outside their house.

In the unrated version, a woman is startled and frightened by one of the strangers who appears behind her (she cries and covers her eyes), but he doesn't do anything to her.

When the house is first terrorized, there are a lot of loud noises outside and inside the house that may be disturbing.

The methods the assailants use to terrorize are extremely disturbing such as playing happy music and not attacking straight away.

Plenty of jump scares however they are VERY effective in use of silence and atmosphere.

There are many instances throughout the film where people in masks appear abruptly, startling the audience.

A masked woman smashes a radio with an axe.

A couple speeds away in a car, and they are chased by a truck that smashes into the rear of the car, disabling it.

A man in a parked car is startled by a rock thrown through his windshield (we do not see who threw the rock).