Grim secrets of 'sex dungeon' discovered deep below home with bed and 'incest' guide
![Grim secrets of 'sex dungeon' discovered deep below home with bed and 'incest' guide](https://i2-prod.dailystar.co.uk/incoming/article29851428.ece/ALTERNATES/s615/0_yZ5O87ljpeg.jpg)
The stunned homeowner found the secret room under his 1900s home two years after moving in when he went to investigate a plumbing problem – and it has a terrifying backstory