A man gives another man oral sex.

A victim's face is slashed multiple times, they smear blood on the killer's face.

A man is swimming in a community pool and the killer swims by him underneath the water and apparently slashes a part of him. The camera cuts and the pool water turns blood red. A little graphic

A lady is grabbed from behind and slashed across the chest, but it appears she only passes out and dies later. A little more intense

A man gives another man oral sex and is then slashed, we see blood and the other man sets the body on fire. All in detail. Graphic but not extremely.

Slashings throughout the film, some bloody with bloody aftermaths. While it may have been graphic for 1981 the effects and slashings are positively tame compared to modern films.

A few uses of the f-word, b*tch etc.

Alcohol and cigarette smoking.

Slashing and stalking happens throughout the film. Obscene, harrassing letters are also read out loud throughout the film.