The Sims 4 modding community has built several tools that can simulate domestic friction, toxic relationships, and violence. Depending on whether you want over-the-top action or slow, psychologically intense stories, you will want to look at different creators. Sacrificial's Extreme Violence Mod
Major game patches frequently break script mods. Always check the creator's page after a Sims 4 update to download the compatible version. sims 4 domestic abuse mod link
Go to Game Options > Other > Check "Enable Script Mods" and "Enable Custom Content." The Sims 4 modding community has built several