With the demon lord Demogorgon hot on their heels, our heroes have taken refuge in the Duergar city of Gracklstugh. They are outsiders and only by completing a difficult mission have they taken up residents.

The lives of two heroines are in danger as a serial killer is murdering female Drow with grotesque fashion. The heroes are clever and combat ready, but they’ll be in for surprise when they find out the killer has company in his labyrinth home…

But what could be there? My players are level 6, have 6 members, plenty of skill, a few allies, and my wife hostage. I need some ideas on what sort of monsters a serial killer might made bedfellows with. Already got red caps, but I can’t think of much else.