It's a glitch if it's in freeplay mode. If in story mode it's part of the story..and I believe they leave eventually.
They get the hell out of the house and call 911
House of Hell was created in 1984.
Omar Cunningham sang "Hell at the House" from the "Hell at the House" CD, 2004. Main lyrics are, "I can catch hell at the house; I don't need to catch it from you."
The duration of Hell's House is 1.2 hours.
The Legend of Hell House was created in 1973.
Hell's House was created on 1932-01-30.
Hell House - novel - was created in 1971.
Hell House - film - was created in 2001.
The Haunting of Hell House was created in 1999.
The duration of The Legend of Hell House is 1.58 hours.
Hell House - novel - has 288 pages.
Hell Comes to Your House was created on 1981-01-01.