A paranormal investigation team recently captured some intriguing footage during a visit to a local theater.
Recorded by Ghosted UK at St George's Theatre in Great Yarmouth, England, the video shows a number of strange silhouettes moving back and forth along a corridor at the building's entrance.
Group member Tim Johnson has described the figures as "unexplained paranormal activity."
"I haven't got a clue what they are but it definitely isn't the shadow of people because you would have seen somebody walk in front of the window," he said.
"It is really exciting and we want to go back again to explore the building further."
During their investigation of the building the team also reported hearing "creepy voices."
The anomalous shadows can be seen in the video from around 00:16s.
Shadowy figures filmed in Norfolk theater - Unexplained Mysteries