1x14 - In the Nick of Time

And as Fotis and Spyros get home upset after their findings at the newspaper archives, some other people live their own drama. Trapped in a boutique changing room, Dalia, Zoumboulia and Aggela use the most incredible ways so the bad guy (who suddenly decided to go shopping like a normal person) won't find them. A video club subscription card will lead them to a close surveillance outside a video club, so he can lead them to his house. Who is this persistent villain?