"File it under Fear " Filming Locations.
For anyone who may be interested, the fictional town of "Penbury" is actually Hertford UK, the Library is on the North side of Castle Street (No 28), the underpass/subway is at the South West end of Castle Street, the phonebox murder is at East Station at the junction of Mill Road and Railway Street in North Hertford and the Canal scenes are filmed very near by in north Hertford just South of the small suburb and former village of Bengeo.
Things have altered very very little in the past 43 years and all these locations can still be easily found on Google Earth.
Accrochet toi a ton reve