She probably didn’t envision this scary of a Halloween…

A “scream park” in Missouri became a real-life nightmare after a teenage girl was found hanging from a noose, authorities said.

The 17-year-old, whose name has not been released, was discovered on Thursday by co-workers at Creepyworld in Fenton, according to KSDK 5 News.

She was unconscious at the time and rushed to a nearby hospital, authorities said. She was listed in critical condition.

“It’s a situation that’s under investigation,” Larry Kirchner, president of Halloween Productions Inc., which operates the park, told the St. Louis Post-Dispatch.

The teenager was one of the actors at Creepyworld, an attraction designed like a small town infested with ghouls and ghosts, police said. It is unclear how she became trapped in the noose.

“This is odd and a little strange because it is a haunted house,” Jefferson County Sheriff’s Department Captain Ron Arnhart told KSDK 5 News. “It’s really an unfortunate accident. It’s sad.”

If the girl comes out of this okay, you can bet this ends up being the best promotion Creepyworld has ever had. SMH.