A scene opens with an adult man and woman who have just had sex (implied, not shown). The woman is wearing underwear and a sheer bra and is picking up her clothes off the floor and getting dressed. The man lies in bed, bare chest is briefly visible, his privates are covered behind a blanket.

One instance of nudity is mild : full rear nudity of a woman

Update :another full rear nudity from Miranda Otto episode 4

A man is seen jerking off in a shower. The shot is from behind, but it is clear what he is doing. His wife sees him and tells her friend about it.

A teenage girl tells her friend that a boy fingered her

Brief scene of a couple having sex. Woman is wearing a bra.

In a public bathroom, an adult woman offers another woman money to buy cocaine from her. We then see several adults sniffing cocaine.

Adults drink alcohol at a party. An adult woman plans to consume a lot of alcohol at the party.

A woman takes a microdose of Lsd and is high for a good part of an episode