The main concept of the game: Iris has been put into an escape game and honestly doesn't show much agency throughout the plot. She's harmed a couple of times during the game.
The portrayal is somewhat abstracted, but we hear weapon noises and see bloody stains appear on a character while he fails to cope with the death of his partner in a healthy manner.
YMMV on this one. Iris's outfit in this game definitely leans heavily towards this, but none of the other characters ever comment on it or make objectifying remarks towards her because of it and it's kinda just there
Mentions of bugs in dialogue, but no visuals. One character makes mention of preparing bugs for eating in dialogue, but this consists of two or three lines of dialogue and is not accompanied by any visuals.
A major subplot involves getting charges against "one of our own" dropped by providing evidence of his character. It's ultimately a moral gray area and not obvious corruption, but it is definitely motivated by a desire to keep his talent in the police department.
There is romantic tension between two characters, one of whom is a recently-created, sapient artificial intelligence but acts the age of the other partner.
It's never explicitly stated, but one question involves examining the memories of a woman and discovering (without her consent) that she had feelings for a female friend of hers.
Brief visual of a character being strangled and stabbed in the first somnium, but it's non-graphic and the footage stops before the act is fully performed
The escape room game is being livestreamed during the game's events and this isn't mentioned to the participating players until about halfway through the game.
Some of the main characters are kidnapped for the escape game, and there's mentions of a character having been kidnapped as part of an older case mentioned in the game.
One character was put into a coma prior to the game's events due to an injury to the head. The event is described in narration from the character in a puzzle sequence. Additionally, it's implied the characters in the escape game were knocked unconscious prior to the room, and one character is unconscious for the entire puzzle.