There is prolonged full-frontal male nudity in a scene. It is non-sexual, but goes on for a while.

Season 2 has a prolonged scene with close ups of 4 men's genitalia while urinating

The female detective is seen in the shower. Her body is blurred by the shower door but bare back and side of breasts are visible.

Season 2 features close-up shots of men's penises, unusually small, as a running gag is that they're misogynistic and frequently talk about disrespecting women.

A story is told about Dutch security guards who are purposely dressed in skin-coloured shorts and blazer combos with bad haircuts so they'll be sexually unappealing to women.

Prostitution and pimps are mentioned in passing.

Myna's nanny tells her that no men can follow them because they're going into the ladies' public toilet.

Entries with a lot of plot detail - if that is even needed here - should go in the spoilers section, especially if they identify the individuals involved!

Nothing overly graphic, although there are some partial shoulder shots of women, phrases such as "dick", "pickle", and mentioning of John's father being attacked as a joke with an inflatable penis at a rock concert.

Prostitution is mentioned.

Alice records what is implied to be a sex tape of sorts, an audio recording for John to remember her when he's "in bed" (it is later just revealed to be an audio recording of Alice snoring loudly).

Sex is implied between male and female characters but never really displayed graphically on-screen.

When picking through the used trash cans at motel rooms, Detective Albans mentions the possibility of there being "used condoms" in the bathroom cans.

Men use urinals, including a very bizarre outdoor urinal in Luxembourg which is a circle of multiple urinals in a busy public park.

John and Icabod hug each other after Icabod explains to John that he wasn't trying to be a creep by calling him a "liar". Lacroix catches them hugging and remarks "wow." implying that he believes them to be in some sort of relationship (they're not really).

It is said that Leslie has an "illegitimate half-Vietnamese son".

The majority of what would be considered "sexual" in nature in this show (as of Season 1) is mostly just innuendo and loosely implied instances, which chances are the majority of younger viewers would not pick up on.

A man hits himself in the head with a sock stuffed full of European dimes, knocking himself out.

A convenience store owner is shot; his body lies on the floor.

Numerous men, most unnamed, are shot and killed in season 2.

Leslie wanders around with a bloody nose after redeveloping his cocaine addiction in season 2. This frightens his grandson and a policeman. Closeups of the character's bloody nose and bloodstained beard are seen.

Leslie tries to chop of his grandson's hair with a knife.

Schoolgirls at a home for troubled youth play a game of "Mercy" (where one twists the other party's arm backwards to see how long they can go without screaming "mercy!")

John has his teeth pulled; three bloody teeth are seen on-screen.

Myna's nanny is hit in the head with the door of a public toilet stall; Myna herself is then kidnapped, but unharmed. The nanny is later seen alive, albeit with a large bruise on her forehead.

A female police detective is hit in the head by a convenience store shelf numerous times, blinded and later seen needing a guide to help her get wherever she has to go.

An overweight bearded man plans a suicide and is seen tying a noose by way of an instructional video.

A man named Birdbath acts violent, mean and crass, for instance getting John to steal the prosthetic legs of war vets as part of a secret plan.

Guns are often pictured onscreen, including in the reoccurring intro montage of super 8 home movies, which displays a little boy firing a gun (the little boy is supposed to be John). Knives are also sometimes seen. A French police officer carries a machine gun.

Three of the characters are to drop a heavy safe from a hotel window high above the ground, but contemplate on the possibility that it might hit someone on the head (it doesn't).

The subject of murder is often discussed and there is an interrogation scene in which a murder is brought up.

The language in season 2 escalates to uses of "pussy", "shithole", "pimp", "motherfucker", etc. At one point foul language is directed towards a small orphaned child; adult characters tell him (in Romanian) that he has a "fucked up face", making him run away crying.

Many instances of extreme profanity, vulgar/lewd phrases, including "asshole", "bitch", "son-of-a-bitch", "penis", "fuck", "damn", "goddamn it", "god", "oh my god", "oh lord", "jesus", "kick his ass", "dick", "pickle (as a euphemism for penis"), "jerk", "idiot", "sex", "hooker" and "piss".

Verbal yelling and non-profane insults at times, including John making fun of Steven and Icabod for various reasons.

Leslie goes back to cocaine after being clean and sober for years. He wanders around with a grotesque bloody nose, drinks a whole bottle of wine, and tries to cut off his grandson's hair.

John develops an addiction to prescription painkillers in season 2.

Many instances, including Leslie losing his own company for embezzlement to fuel his cocaine addiction, drinking of various forms of alcoholic beverages and cigarette smoking.

The murder scenes and profanity might upset younger viewers.