The Prowler - S1.E18

Based on storyline in Gideon's Night. This occurs in the thick fogs of the time, due to most people using coal fires to keep warm, and the episode tries for a creepy atmosphere. The girlfriend of a young man (David Collings) has committed suicide causing him to become mentally unbalanced and he now attacks girls at night and cuts off some of their hair as a souvenir. One girl fights back and scratches him and as the police close in, he visits an unsuspecting girlfriend to hide at her place.