Installing it

What you need first

The Sims 4	Tested on the current patch. No specific expansion packs required.
WickedWhims	Any modern version. The mod does not run without it.
Nisa’s Wicked Perversions	Optional. Only for the smeared-makeup tears. Everything else works without it.
Script mods enabled	Game Options → Other → tick both script mods and custom content.

Installing

1. Download the latest .zip from the LoversLab page.
2. Unzip it. Inside you get a folder called BQ_NightVisitor.
3. Drop that folder into your Mods folder.
4. Start the game.

That is it. There is no installer and nothing to configure on disk.

Where the Mods folder actually is

Documents / Electronic Arts / <The Sims 4> / Mods

The middle part depends on your game’s language, and this trips up a lot of people:

Game language	Folder
English	The Sims 4
Spanish	Los Sims 4
German	Die Sims 4
French	Les Sims 4

Use the one your game actually created. If you see more than one, use the one that already has your other mods in it.

The path, on an English install.

Do not nest the folder

This is right:

Mods/
  BQ_NightVisitor/
    BQ_NightVisitor.ts4script
    ...

This is wrong, and the mod will not load:

Mods/
  BQ_NightVisitor/
    BQ_NightVisitor/      <-- one folder too deep
      BQ_NightVisitor.ts4script

The Sims 4 only reads script mods a couple of folders deep. If you unzipped straight into Mods and ended up with a folder inside a folder of the same name, move the inner one up.

Updating from an older version

Delete the old BQ_NightVisitor folder before copying the new one. Do not merge them.

Old versions leave files behind that the new one does not use, and some of them are packages the game still loads. The symptom is interactions that appear twice, or one that does nothing.

Your saved data survives: what the mod remembers about your victims lives in the files listed below, and they are not part of the update.

What the mod writes in that folder

File	What it is
visitante_config.json	Your settings. Delete it and everything goes back to defaults.
victima_data.json	Which sims are victims, their level, who attacked whom. Back this one up if you care about it.
trofeos.json	The garments your predator has stolen.
visitante_mod.log	What the mod did. This is the file to look at when something is wrong.
translations/	The language files. See the translation page.

Compatibility

Works alongside MC Command Center, Sims4CommunityLib, Basemental Drugs and most WickedWhims addons.

If you hit a conflict with another mod, the log file is the place to start — and reporting it to both mod authors gets it fixed faster than reporting it to one.