Originally broadcast in September 1952, You Must Listen was written by Nigel Kneale, one of the most admired English science-fiction writers of the last century. His Quatermass trilogy continues to influence generations of admirers and filmmakers, among them Russell T Davies and John Carpenter.

Before his television career, Kneale’s radio drama paved the way for what was to come. It explores many of the same themes that he later addressed in Quatermass, The Stone Tape and The Road, of the paranormal coming into collision with modern science.

For this version, audio producers Bafflegab have returned to Kneale’s original script – fortunately kept by the late writer as no recording of the original play exists.

Here’s the premise for You Must Listen:

A solicitor’s office has a new phone line connected, but the staff keep hearing a woman’s voice on the phone. Engineer Frank Wilson is called to fix the problem, and gradually the disturbing story of the woman starts to emerge.

This modern version stars Toby Jones, Reece Shearsmith, Caroline Catz, Jessie Cave and John Scougall. Also in the cast are Jason Barnett, Jacqueline King, Dan Starkey and Becky Wright.