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A woman tells a joke about giving a lemon an orgasm.
An early scene has bloody results and injury, although briefly. It also has some brief strong horror moments and is very tense.The second half of the film is just about all violence. Monsters (crawlers) as well as humans are killed in various graphic ways. A woman gets her abdomen ripped open and the creatures eat her intestines. With each attack there is always blood spraying, it is very graphic and realistic violence (even though it contains monsters)
Many uses of the f-word
Characters drink beer while talking and smoking cigarettes.
Sustained terror and horror throughout the entire film. Including various themes of claustrophobia, islolation, pitch black darkness, and of course - the monsters.