Inspector Morse faces a puzzling trip into the world of the hearing impaired - with a murder investigation into the death of an invigilator in an Oxford exam syndicate...

Colin Dexter's thriller adapted by Guy Meredith.

Starring John Shrapnel as Inspector Morse, Robert Glenister as Sgt. Lewis, Richard Pasco as Dr Bartlett, Meg Davies as Monica Height, Stephen Critchlow as Donald Martin, David Timson as Phillip Ogleby, John Hartley as Chief Supt. Strange, Lyndham Gregory as Sgt. Dickson, Roger May as Nicholas Quinn, Alix Refaie as the Sheik, Denys Hawthorne as the Pathologist,Jane Whittenshaw as Mrs Evans, Patience Tomlinson as Elsie, Tracy Wiles as the Waitress, Zulema Dene as Mrs Bartlett, David Holt as Noakes, Ahmed Mustapha as the Arab voice, Alice Arnold as Ms Inga Nielssen, Caroline Strong as the Supermarket Manager and Geoffrey Whitehead.

Producer: Ned Chaillet

First broadcast on BBC Radio 4 in 1996. Show less