Armchair Thriller S02 E16 Fear of God (Part 2)

Paul attends Rosamund's funeral, which is also attended by a leader of the Regiment of God sect - the cult she belonged to. At the service, he meets her sister, Nicola, whom he arranges to meet later to share information. Finding his flat bugged, and hearing of the cult's use of sound as a weapon, Paul is drawn deeper into the mystery of Rosamund's death.