Filming Location:

Hillingdon, London

The Mark of Satan

Hillingdon hospital and its morgue were used for the locations. Thanks to Jim, a visitor to the forum for confirming the location.

The Mark of Satan Hospital location
Hillingdon Hospital
Kevin Flanagan, a major location finder, thinks that the library, which was originally thought to be Maidenhead, is in fact Oak Farm Library, Sutton Court Road, Hillingdon, as it has the same style roof and is located just 1.5 miles from the hospital.

Kevin has found another library only a couple of miles further out, in Hayes which could also be a contender. So the jury’s out on this one !

Mark of Satan Library
Oak Farm Library Hillingdon